16 results on '"Zhang, La"'
Search Results
2. A superconducting nanowire photon number resolving four-quadrant detector-based Gigabit deep-space laser communication receiver prototype
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Hao, Hao, Zhao, Qing-Yuan, Huang, Yang-Hui, Deng, Jie, Wang, Hui, Guo, Jia-Wei, Chen, Shi, Ru, Sai-Ying, Liu, Zhen, Zhou, Yi-Jin, Wang, Shun-Hua, Wan, Chao, Liu, Hao, Li, Zhi-Jian, Wang, Hua-bing, Tu, Xue-Cou, Zhang, La-Bao, Jia, Xiao-Qing, Chen, Jian, Kang, Lin, and Wu, Pei-Heng
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Physics - Instrumentation and Detectors ,FOS: Physical sciences ,Physics - Applied Physics ,Instrumentation and Detectors (physics.ins-det) ,Applied Physics (physics.app-ph) ,Astrophysics - Instrumentation and Methods for Astrophysics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,Physics - Optics ,Optics (physics.optics) - Abstract
Deep space explorations require transferring huge amounts of data quickly from very distant targets. Laser communication is a promising technology that can offer a data rate of magnitude faster than conventional microwave communication due to the fundamentally narrow divergence of light. This study demonstrated a photon-sensitive receiver prototype with over Gigabit data rate, immunity to strong background photon noise, and simultaneous tracking ability. The advantages are inherited from a joint-optimized superconducting nanowire single-photon detector (SNSPD) array, designed into a four-quadrant structure with each quadrant capable of resolving six photons. Installed in a free-space coupled and low-vibration cryostat, the system detection efficiency reached 72.7%, the detector efficiency was 97.5%, and the total photon counting rate was 1.6 Gcps. Additionally, communication performance was tested for pulse position modulation (PPM) format. A series of signal processing methods were introduced to maximize the performance of the forward error correction (FEC) code. Consequently, the receiver exhibits a faster data rate and better sensitivity by about twofold (1.76 photons/bit at 800 Mbps and 3.40 photons/bit at 1.2 Gbps) compared to previously reported results (3.18 photon/bit at 622 Mbps for the Lunar Laser Communication Demonstration). Furthermore, communications in strong background noise and with simultaneous tracking ability were demonstrated aimed at the challenges of daylight operation and accurate tracking of dim beacon light in deep space scenarios.
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- 2022
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3. An optics-free computational spectrometer using a broadband and tunable dynamic detector
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Kong, Ling-Dong, Zhao, Qing-Yuan, Wang, Hui, Guo, Jia-Wei, Lu, Hai-Yang-Bo, Hao, Hao, Guo, Shu-Ya, Tu, Xue-Cou, Zhang, La-Bao, Jia, Xiao-Qing, Kang, Lin, Wu, Xing-Long, Chen, Jian, and Wu, Pei-Heng
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Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,FOS: Physical sciences ,Physics::Optics ,Applied Physics (physics.app-ph) ,Instrumentation and Detectors (physics.ins-det) ,Physics - Applied Physics ,Optics (physics.optics) ,Physics - Optics - Abstract
Optical spectrometers are the central instruments for exploring the interaction between light and matter. The current pursuit of the field is to design a spectrometer without the need for wavelength multiplexing optics to effectively reduce the complexity and physical size of the hardware. Based on computational spectroscopic results and combining a broadband-responsive dynamic detector, we successfully demonstrate an optics-free single-detector spectrometer that maps the tunable quantum efficiency of a superconducting nanowire into an ill-conditioned matrix to build a solvable inverse mathematical equation. Such a spectrometer can realize a broadband spectral responsivity ranging from 660 to 1900 nm. The spectral resolution at the telecom is 6 nm, exceeding the energy resolving capacity of existing infrared single-photon detectors. Meanwhile, benefiting from the optics-free setup, precise time-of-flight measurements can be simultaneously achieved. We have demonstrated a spectral LiDAR with 8 spectral channels. This work provides a concise method for building multifunctional spectrometers and paves the way for applying superconducting nanowire detectors in spectroscopy.
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- 2020
4. Research progress of photon response mechanism of superconducting nanowire single photon detector
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Jin Fei-Fei, Chen Jian, Tu Xue-Cou, Guan Yan-Qiu, Zhang Biao, Kang Lin, Zhang La-Bao, Wang Hao, Jia Xiao-Qing, Zhao Qing-Yuan, Chen Qi, and Wu Pei-Heng
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Physics ,Photon ,business.industry ,General Physics and Astronomy ,Optoelectronics ,Superconducting nanowire single-photon detector ,business ,Mechanism (sociology) - Abstract
Superconducting nanowire single photon detector (SNSPD) plays a significant role in plenty of fields such as quantum information, deep space laser communication and lidar, while the mechanism of the photon response process still lacks a recognized theory. It is prerequisite and essential for fabricating high-performance SNSPD to understand in depth and clarify the photon response mechanism of the SNSPD. As mature theories on the SNSPD response progress, hot-spot model and vortex-based model both have their disadvantages: in the former there exists the cut-off wavelength and in the later there is the size effect, so they both need further improving. The Cut-off wavelength means that the detection efficiency of the SNSPD drops to zero with the increase of light wavelength, which is indicated by the hot-spot model but not yet observed in experiment. The size effect implies that the vortex does not exist in the weak link with the width less than 4.41ξ, where ξ is the GL coherence length. Phase slip is responsible for the intrinsic dissipation of superconductors, which promises to expound the SNSPD photon response progress and to establish a complete theory. This paper reviews and discusses the fundamental conception, the development history and the research progress of the hot-spot models, i.e. the vortex-based model and the superconductor phase slips, providing a reference for studying the SNSPD photon response mechanism.
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- 2021
5. SAML Improvement Scheme in Cloud Environment
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Lu Yu and Zhang La
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Structure (mathematical logic) ,Scheme (programming language) ,Authentication ,business.industry ,Computer science ,Distributed computing ,Cloud computing ,Workload ,Outsourcing ,Task (computing) ,Identity (object-oriented programming) ,business ,computer ,computer.programming_language - Abstract
In order to cope with the continuous increase in the number of network applications in the cloud computing environment, the load of server operations based on SAML-based identity authentication interruptions requires a further increase in computing performance. This paper analyzes the characteristics of the cloud computing environment, studies the structure of the SAML framework, uses a combination of computational task outsourcing and cloud computing, and designs an improved solution to achieve better performance while reducing the workload of the asserting party and reducing input costs.
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- 2018
6. Size-dependent in vivo toxicity of PEG-coated gold nanoparticles
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Zhang XD, Wu D, Shen X, Liu PX, Yang N, Zhao B, Zhang H, Sun YM, Zhang LA, and Fan FY
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Medicine (General) ,R5-920 - Abstract
Xiao-Dong Zhang, Di Wu, Xiu Shen, Pei-Xun Liu, Na Yang, Bin Zhao, Hao Zhang, Yuan-Ming Sun, Liang-An Zhang, Fei-Yue FanInstitute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, People’s Republic of ChinaBackground: Gold nanoparticle toxicity research is currently leading towards the in vivo experiment. Most toxicology data show that the surface chemistry and physical dimensions of gold nanoparticles play an important role in toxicity. Here, we present the in vivo toxicity of 5, 10, 30, and 60 nm PEG-coated gold nanoparticles in mice.Methods: Animal survival, weight, hematology, morphology, organ index, and biochemistry were characterized at a concentration of 4000 µg/kg over 28 days.Results: The PEG-coated gold particles did not cause an obvious decrease in body weight or appreciable toxicity even after their breakdown in vivo. Biodistribution results show that 5 nm and 10 nm particles accumulated in the liver and that 30 nm particles accumulated in the spleen, while the 60 nm particles did not accumulate to an appreciable extent in either organ. Transmission electron microscopic observations showed that the 5, 10, 30, and 60 nm particles located in the blood and bone marrow cells, and that the 5 and 60 nm particles aggregated preferentially in the blood cells. The increase in spleen index and thymus index shows that the immune system can be affected by these small nanoparticles. The 10 nm gold particles induced an increase in white blood cells, while the 5 nm and 30 nm particles induced a decrease in white blood cells and red blood cells. The biochemistry results show that the 10 nm and 60 nm PEG-coated gold nanoparticles caused a significant increase in alanine transaminase and aspartate transaminase levels, indicating slight damage to the liver.Conclusion: The toxicity of PEG-coated gold particles is complex, and it cannot be concluded that the smaller particles have greater toxicity. The toxicity of the 10 nm and 60 nm particles was obviously higher than that of the 5 nm and 30 nm particles. The metabolism of these particles and protection of the liver will be more important issues for medical applications of gold-based nanomaterials in future.Keywords: gold nanoparticles, in vivo, toxicity, size
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- 2011
7. Optical properties of niobium nitride nanowires
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Kang Lin, Wu Yang, Tao Xu, Tu Xue-Cou, Ge Rui, Zhang Biao, Wu Pei-Heng, Xu Rui-Ying, Jia Xiao-Qing, Zhang La-Bao, and Chen Qi
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chemistry.chemical_compound ,Niobium nitride ,Materials science ,chemistry ,business.industry ,Nanowire ,General Physics and Astronomy ,Optoelectronics ,business - Abstract
Niobium nitride (NbN) nanowires are commonly used as photosensitive materials for superconducting nanowire single-photon detectors (SNSPDs). Their optical properties are the key factors influencing the performance of SNSPD. According to the experimental data and simulation results, in this paper we systematically study the optical properties of various niobium nitride nanowire detector device structures, and characterize the reflection spectra and transmission spectra of the following four device structures:1) Backside optical devices with SiO2 as the antireflection layer, 2) backside optical devices with SiN as the antireflection layer, 3) front-facing optical devices with Au+SiN as a mirror, and 4) front-facing optical devices with distributed Bragg reflector (DBR) as a mirror. The NbN films with different thickness are grown on the basis of the four device structures, and the absorption efficiencies of the NbN films with different thickness are observed. The relationships between the optimal NbN thickness and the optical absorption rate for different device structures are found as follows:The maximum absorption rate of NbN on the SiO2 antireflection layer is 91.7% at 1606 nm, while the absorption rates of the remaining structures at the optimal thickness of NbN can reach 99% or more. The absorption rate of the SiN device, the Au+SiN device and the DBR device are 99.3%, 99.8% and 99.9%, respectively. The measured results and simulation structure of DBR device are analyzed. These results are of significance for guiding the design and development of high efficiency SNSPD.
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- 2018
8. Compatibility study of trans-1,4,5,8-tetranitro-1,4,5,8-tetraazadecalin (TNAD) with some energetic components and inert materials
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Li Xiao-Jiang, Liu Zi-Ru, Qi-Long Yan, Li Hong-Li, Zhang La-Ying, and Li Ji-Zhen
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Environmental Engineering ,Health, Toxicology and Mutagenesis ,Mineralogy ,Calorimetry ,Polyethylene glycol ,chemistry.chemical_compound ,Differential scanning calorimetry ,Explosive Agents ,Hardness ,Adipate ,Friction sensitivity ,Environmental Chemistry ,Particle Size ,Waste Management and Disposal ,Calorimetry, Differential Scanning ,Chemistry ,Carbon black ,Bridged Bicyclo Compounds, Heterocyclic ,Nitro Compounds ,Pollution ,Chemical engineering ,Metals ,Thermodynamics ,Hexamethylene diisocyanate ,Particle size ,Aluminum - Abstract
The compatibility of trans-1,4,5,8-tetranitro-1,4,5,8-tetraazadecalin (TNAD) with some energetic components and inert materials of solid propellants was studied by using the pressure DSC method where, cyclotetramethylenetetranitroamine (HMX), cyclotrimethylenetrinitramine (RDX), 1,4-dinitropiperazine (DNP), 1.25/1-NC/NG mixture, lead 3-nitro-1,2,4-triazol-5-onate (NTO-Pb), aluminum powder (Al, particle size=13.6microm) and N-nitrodihydroxyethylaminedinitrate (DINA) were used as energetic components and polyethylene glycol (PEG), polyoxytetramethylene-co-oxyethylene (PET), addition product of hexamethylene diisocyanate and water (N-100), 2-nitrodianiline (2-NDPA), 1,3-dimethyl-1,3-diphenyl urea (C2), carbon black (C.B.), aluminum oxide (Al2O3), cupric 2,4-dihydroxy-benzoate (beta-Cu), cupric adipate (AD-Cu) and lead phthalate (phi-Pb) were used as inert materials. It was concluded that the binary systems of TNAD with NTO-Pb, RDX, PET and Al powder are compatible, and systems of TNAD with DINA and HMX are slightly sensitive, and with 2-NDPA, phi-Pb, beta-Cu, AD-Cu and Al2O3 are sensitive, and with PEG, N-100, C2 and C.B. are incompatible. The impact and friction sensitivity data of the TNAD and TNAD in combination with the other energetic materials under present study was also obtained, and there was no consequential affiliation between sensitivity and compatibility.
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- 2008
9. Model of bit error rate for laser communication based on superconducting nanowire single photon detector
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Li Jian-Ting, Xing Qiang-Lin, Chen Ya-Jun, Zhu Hong-Quan, Zhu Jiang, Yan Xia-Chao, Wu Pei-Heng, Kang Lin, Chen Jian, and Zhang La-Bao
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Physics ,Photon ,Extinction ratio ,business.industry ,General Physics and Astronomy ,Superconducting nanowire single-photon detector ,Laser ,01 natural sciences ,law.invention ,010309 optics ,Light intensity ,Optics ,Transmission (telecommunications) ,law ,0103 physical sciences ,Bit error rate ,010306 general physics ,business ,Free-space optical communication - Abstract
The high-speed deep space communication is one of the key technologies for deep space exploration. Laser communication system equipped with sensitivity of single photon will improve existing deep space communication speed. However, laser communication at single photon level needs to consider not only the effect of transmission environment, but also the performance of used single photon detector and the photon number distribution. As a new single photon detector, superconducting nanowire single photon detector (SNSPD) outperforms the traditional semiconducting SPDs at near infrared wavelengths, and has high detection efficiency, low dark count rate, low timing jitter, high counting rate, etc. The SNSPD can be used for detecting single photons efficiently, rapidly and accurately. In this paper, we introduce the system detection efficiency and dark count rate of SNSPD based on the photoelectric detecting model without considering the effect of atmospheric turbulence, establish the mathematical model of bit error, and put forward the formula of system bit error rate. What should be emphasized is that the bit error rate is an important parameter for measuring the performance of laser communication system. Error is partly from background thermal radiation and circuit electromagnetic interference; in addition, error appears when photons reach the surface of device without being absorbed to successfully produce resistance area or photons are absorbed but there occurs no response. As a result, the calculation of bit error rate includes the whole process of photoelectric conversion. In order to analyze how to affect the size of system bit error rate, first we simulate two factors of the formula, i.e., light intensity and laser pulse repetition frequency. The results show that the light intensity has the greatest influence on error bit rate. With the light intensity increasing from 0.01 to 1000 photon/pulse, the error bit rate significantly decreases from 10-1 to 10-7 level. The influence of laser pulse repetition frequency is restricted by the light intensity, which declines with the increase of pulse repetition frequency. Then we measure the error bit rate experimentally, which validates the simulation model. However, when increasing light intensity or speed, experimental bit error rate is about 10-4 times higher than simulation result. The reason may be that the insufficiency of actual communication modulation extinction ratio of optical signal to the background noise through optical fiber increases the dark count rate. The above model and experimental results could be the foundation of high-speed deep space laser communication such as moon-earth and Mars-earth based on SNSPD.
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- 2017
10. ESICM LIVES 2016: part two : Milan, Italy. 1-5 October 2016
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Sivakumar, S, Taccone, FS, Desai, KA, Lazaridis, C, Skarzynski, M, Sekhon, M, Henderson, W, Griesdale, D, Chapple, L, Deane, A, Williams, L, Ilia, S, Henderson, A, Hugill, K, Howard, P, Roy, A, Bonner, S, Monteiro, E, Baudouin, S, Ramírez, CS, Escalada, SH, Banaszewski, M, Sertedaki, A, Kaymak, Ç, Viera, MA, Santana, MC, Balcázar, LC, Monroy, NS, Campelo, FA, Vázquez, CF, Santana, PS, Cerejo, A, Santana, SR, Charmadari, E, Carteron, L, Kovach, L, Patet, C, Quintard, H, Solari, D, Bouzat, P, Oddo, M, Wollersheim, T, Malleike, J, Haas, K, Stratakis, CA, Rocha, AP, Carbon, N, Şencan, I, Schneider, J, Birchmeier, C, Fielitz, J, Spuler, S, Weber-Carstens, S, Enseñat, L, Pérez-Madrigal, A, Briassouli, E, Saludes, P, Proença, L, Elsayed, AA, Meço, B, Gruartmoner, G, Espinal, C, Mesquida, J, Huber, W, Eckmann, M, Elkmann, F, Goukos, D, Gruber, A, Lahmer, T, Mayr, U, Herner, A, Özçelik, M, Abougabal, AM, Schellnegger, R, Schmid, RM, Ayoub, W, Psarra, K, Samy, W, Esmat, A, Battah, A, Mukhtar, S, Mongkolpun, W, Ünal, N, Cortés, DO, Beshey, BN, Cordeiro, CP, Vincent, JL, Leite, MA, Creteur, J, Funcke, S, Groesdonk, H, Saugel, B, Wagenpfeil, G, Wagenpfeil, S, Reuter, DA, Fernandez, MM, Alzahaby, KM, Botoula, E, Fernandez, R, Magret, M, González-Castro, A, Bouza, MT, Ibañez, M, García, C, Balerdi, B, Jenni-Moser, B, Mas, A, Arauzo, V, Tsagarakis, S, Añón, JM, Pozzebon, S, Ruiz, F, Ferreres, J, Tomás, R, Alabert, M, Tizón, AI, Altaba, S, Jeitziner, MM, Llamas, N, Haroon, BA, Edul, VS, Goligher, EC, Fan, E, Herridge, M, Ortiz, AB, Vorona, S, Sklar, M, Dres, M, Rittayamai, N, Lanys, A, Schreiber, J, Mageira, E, Urrea, C, Tomlinson, G, Reid, WD, Rubenfeld, GD, Kavanagh, BP, Cristallini, S, Brochard, LJ, Ferguson, ND, Neto, AS, De Abreu, MG, Routsi, C, Imiela, J, Galassi, MS, Pelosi, P, Schultz, MJ, PRoVENT investigators and the PROVE Network, Guérin, C, Papazian, L, Reignier, J, Lheureux, O, Ayzac, L, Nanas, S, Loundou, A, Forel, JM, Sales, FL, Rolland-Debord, C, Bureau, C, Poitou, T, Clavel, M, Perbet, S, Terzi, N, Kouatchet, A, Briassoulis, G, Brasseur, A, Similowski, T, Demoule, A, De Moraes, KC, Hunfeld, N, Trogrlic, Z, Ladage, S, Osse, RJ, Koch, B, Rietdijk, W, Boscolo, A, Devlin, J, Van der Jagt, M, Picetti, E, Batista, CL, Ceccarelli, P, Mensi, F, Malchiodi, L, Risolo, S, Rossi, I, Bertini, D, Antonini, MV, Servadei, F, Caspani, ML, Roquilly, A, Júnior, JA, Lasocki, S, Seguin, P, Geeraerts, T, Perrigault, PF, Campello, E, Dahyot-Fizelier, C, Paugam-Burtz, C, Cook, F, Cinotti, R, Dit Latte, DD, Mahe, PJ, Marcari, TB, Fortuit, C, Feuillet, F, Lucchetta, V, Asehnoune, K, Marzorati, C, Spina, S, Scaravilli, V, Vargiolu, A, Riva, M, Giussani, C, Lobato, R, Sganzerla, E, Hravnak, M, Osaku, EF, Citerio, G, Barbadillo, S, De Molina, FJ, Álvarez-Lerma, F, Rodríguez, A, SEMICYUC/GETGAG Working Group, Zakharkina, T, Martin-Loeches, I, Castro, CS, Matamoros, S, Fuhrmann, V, Piasentini, E, Povoa, P, Yousef, K, Torres, A, Kastelijn, J, Hofstra, JJ, De Jong, M, Schultz, M, Sterk, P, Artigas, A, De Souza, LM, Aktepe, O, Bos, LJ, Moreau, AS, Chang, Y, Salluh, J, Rodriguez, A, Nseir, S, TAVeM study group, De Jong, E, Fildisis, G, Rodrigues, FF, Van Oers, JA, Beishuizen, A, Girbes, AR, Nijsten, MW, Crago, E, De Lange, DW, Bonvicini, D, Labate, D, Benacchio, L, Radu, CM, Olivieri, A, Stepinska, J, Wruck, ML, Pizzirani, E, Lopez-Delgado, JC, Gonzalez-Romero, M, Fuentes-Mila, V, Berbel-Franco, D, Friedlander, RM, Romera-Peregrina, I, Manesso, L, Martinez-Pascual, A, Perez-Sanchez, J, Abellan-Lencina, R, Correa, NG, Ávila-Espinoza, RE, Moreno-Gonzalez, G, Sbraga, F, Griffiths, S, Grocott, MP, Creagh-Brown, B, Simioni, P, Abdelmonem, SA, POPC-CB investigators, Doyle, J, Wilkerson, P, Pelegrini, AM, Soon, Y, Huddart, S, Dickinson, M, Riga, A, Zuleika, A, Ori, C, Miyamoto, K, Kawazoe, Y, Tahon, SA, Morimoto, T, Yamamoto, T, Eid, RA, Fuke, A, Hashimoto, A, Koami, H, Beppu, S, Su, H, Katayama, Y, Ito, M, Ohta, Y, Yamamura, H, Helmy, TA, DESIRE (DExmedetomidine for Sepsis in ICU Randomized Evaluation) Trial Investigators, Timenetsky, KT, Rygård, SL, Holst, LB, Wetterslev, J, Lam, YM, Johansson, PI, Perner, A, Soliman, IW, Van Dijk, D, Van Delden, JJ, Meligy, HS, Cazati, D, Cremer, OL, Slooter, AJ, Willis, K, Peelen, LM, McWilliams, D, Snelson, C, Neves, AD, Loudet, CI, Busico, M, Vazquez, D, Villalba, D, Lobato, M, Puig, F, Kott, M, Pullar, V, Veronesi, M, Lischinsky, A, López, FJ, Mori, LB, Plotnikow, G, Díaz, A, Giannasi, S, Hernandez, R, Krzisnik, L, Diniz, PS, Hubner, RP, Cecotti, C, Dunn-Siegrist, I, Viola, L, Lopez, R, Sottile, JP, Benavent, G, Estenssoro, E, Chen, CM, Lai, CC, Cheng, KC, Costa, CR, Rocha, LL, Chou, W, Chan, KS, Pugin, J, Roeker, LE, Horkan, CM, Gibbons, FK, Christopher, KB, Weijs, PJ, Mogensen, KM, Furche, M, Rawn, JD, Cavalheiro, AM, Robinson, MK, Tang, Z, Gupta, S, Qiu, C, Ouyang, B, Cai, C, Guan, X, Tsang, JL, Regueira, T, Cea, L, Topeli, A, Lucinio, NM, Carlos, SJ, Elisa, B, Puebla, C, Vargas, A, Govil, D, Poulsen, MK, De Guadiana-Romualdo, LG, Thomsen, LP, Kjærgaard, S, Rees, SE, Karbing, DS, Schwedhelm, E, Frank, S, Müller, MC, Carbon, NM, Skrypnikov, V, Rebollo-Acebes, S, Srinivasan, S, Pickerodt, PA, Falk, R, Mahlau, A, Santos, ER, Lee, A, Inglis, R, Morgan, R, Barker, G, Esteban-Torrella, P, Kamata, K, Abe, T, Patel, SJ, Saitoh, D, Tokuda, Y, Green, RS, Norrenberg, M, Butler, MB, Erdogan, M, Hwa, HT, Jiménez-Sánchez, R, Gil, LJ, Vaquero, RH, Rodriguez-Ruiz, E, Lago, AL, N, JK, Allut, JL, Gestal, AE, Gleize, A, Gonzalez, MA, Thomas-Rüddel, DO, Jiménez-Santos, E, Schwarzkopf, D, Fleischmann, C, Reinhart, K, Suwanpasu, S, Sattayasomboon, Y, Filho, NM, Gupta, A, Oliveira, JC, Preiser, JC, Ballalai, CS, Zitta, K, Ortín-Freire, A, De Lucia, CV, Araponga, GP, Veiga, LN, Silva, CS, Garrido, ME, Ramos, BB, Ricaldi, EF, Gomes, SS, Tomar, DS, Simón, IF, Hernando-Holgado, A, GEMINI, Gemmell, L, MacKay, A, Wright, C, Docking, RI, Doherty, P, Black, E, Stenhouse, P, Plummer, MP, Finnis, ME, Albaladejo-Otón, MD, Carmona, SA, Shafi, M, Phillips, LK, Kar, P, Bihari, S, Biradar, V, Moodie, S, Horowitz, M, Shaw, JE, Deane, AM, Coelho, L, Yatabe, T, Valhonrat, IL, Inoue, S, Harne, R, Sakaguchi, M, Egi, M, Abdelhamid, YA, Motta, MF, Domínguez, JP, Arora, DP, Hokka, M, Pattinson, KT, Mizobuchi, S, Pérez, AG, Abellán, AN, Plummer, M, Giersch, E, Talwar, N, Summers, M, Pelenz, M, Hatzinikolas, S, Heller, S, Chapman, M, Jones, K, Almudévar, PM, Schweizer, R, Jacquet-Lagreze, M, Portran, P, Rabello, L, Mazumdar, S, Junot, S, Allaouchiche, B, Fellahi, JL, Guerci, P, Ergin, B, Lange, K, Kapucu, A, Ince, C, Cioccari, L, Luethi, N, Crisman, M, Papakrivou, EE, Bellomo, R, Mårtensson, J, Shinotsuka, CR, Fagnoul, D, Kluge, S, Orbegozo, D, Makris, D, Thooft, A, Brimioulle, S, Dávila, F, Iwasaka, H, Brandt, B, Tahara, S, Nagamine, M, Ichigatani, A, Cabrera, AR, Zepeda, EM, Granillo, JF, Manoulakas, E, Sánchez, JS, Montoya, AA, Rubio, JJ, Montenegro, AP, Blanco, GA, Robles, CM, Drolz, A, Horvatits, T, Roedl, K, Rutter, K, Tsolaki, B, Funk, GC, Póvoa, P, Ramos, AJ, Schneeweiss, B, Sabetian, G, Pooresmaeel, F, Zand, F, Ghaffaripour, S, Farbod, A, Tabei, H, Taheri, L, TAVeM study Group, Karadodas, B, Reina, Á, Anandanadesan, R, Metaxa, V, Teixeira, C, Pereira, SM, Hernández-Marrero, P, Carvalho, AS, Beckmann, M, Hartog, CS, Varis, E, Raadts, A, López, NP, Zakynthinos, E, Robertsen, A, Førde, R, Skaga, NO, Helseth, E, Honeybul, S, Ho, K, Vazquez, AR, Lopez, PM, Gonzalez, MN, Ortega, PN, Pérez, MA, Sola, EC, Garcia, IP, Spasova, T, De la Torre-Prados, MV, Kopecky, O, Rusinova, K, Pettilä, V, Waldauf, P, Cepeplikova, Z, Balik, M, Ordoñez, PF, Apolo, DX, Almudevar, PM, Martin, AD, Muñoz, JJ, Poukkanen, M, Castañeda, DP, Villamizar, PR, Ramos, JV, Pérez, LP, Lucendo, AP, Villén, LM, Ejarque, MC, Estella, A, Camps, VL, Neitzke, NM, Encinares, VS, Martín, MC, Masnou, N, Bioethics work group of SEMICYUC, Barbosa, S, Varela, A, Palma, I, López, FM, Cristina, L, Nunes, E, Jacob, S, Pereira, I, 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Gröger, M, Jacobs, R, Zaleska-Kociecka, M, Van Straaten, HM, Trauner, M, Svoren-Jabalera, E, Davenport, EE, Humburg, P, Nguyen, DN, Knight, J, Hinds, CJ, Jun, IJ, Prabu, NR, Kim, WJ, Lee, EH, Besch, G, Perrotti, A, Puyraveau, M, Baltres, M, Eringa, EC, De Waele, E, Samain, E, Chocron, S, Pili-Floury, S, Plata-Menchaca, EP, Sabater-Riera, J, Estruch, M, Boza, E, Toscana-Fernández, J, Man, AM, Bruguera-Pellicer, E, De Regt, J, Ordoñez-Llanos, J, Pérez-Fernández, XL, SIRAKI group, Cavaleiro, P, Tralhão, A, Arrigo, M, Lopes, JP, Lebrun, M, Favier, B, Pischke, S, Cholley, B, PerezVela, JL, Honoré, PM, MarinMateos, H, Rivera, JJ, Llorente, MA, De Marcos, BG, Fernandez, FJ, Laborda, CG, Zamora, DF, Fischer, L, Alegría, L, Grupo ESBAGA, Delgado, JC, Imperiali, C, Myers, RB, Van Gorp, V, Dastis, M, Thaiss, F, Soto, D, Górka, J, Spapen, HD, Górka, K, Iwaniec, T, Koch, M, Frołow, M, Polok, K, Luengo, C, Fronczek, J, Kózka, M, Musiał, J, Szczeklik, W, Contreras, RS, Bangert, K, Gomez, J, Sileli, M, Havaldar, AA, Toapanta, ND, Jarufe, N, Moursia, C, Maleoglou, H, Leleki, K, Uz, Z, Ince, Y, Papatella, R, Bulent, E, Moreno, G, Grabowski, M, Bruhn, A, De Mol, B, Vicka, V, Gineityte, D, Ringaitiene, D, Norkiene, I, Sipylaite, J, Möller, C, Sabater, J, Castro, R, Thomas-Rueddel, DO, Vlasakov, V, Lohse, AW, Rochwerg, B, Theurer, P, Al Sibai, JZ, Camblor, PM, Kattan, E, Torrado, H, Siddiqui, S, Fernandez, PA, Gala, JM, Guisasola, JS, Tamura, T, Miyajima, I, Yamashita, K, Yokoyama, M, Tapia, P, Nashan, B, Gonzalez, M, Dalampini, E, Nastou, M, Baddour, A, Ignatiadis, A, Asteri, T, Hathorn, KE, Sterneck, M, Rebolledo, R, Purtle, SW, Marin, M, Viana, MV, Tonietto, TA, Gross, LA, Costa, VL, Faenza, S, Tavares, AL, Payen, D, Lisboa, BO, Moraes, RB, Farigola, E, Viana, LV, Azevedo, MJ, Ceniccola, GD, Pequeno, RS, Siniscalchi, A, Holanda, TP, Mendonça, VS, Achurra, P, Araújo, WM, Carvalho, LS, Segaran, E, Vickers, L, Gonzalez, A, Brinchmann, K, Pierucci, E, Wignall, I, De Brito-Ashurst, I, Ospina-Tascón, G, Del Olmo, R, Esteban, MJ, Vaquerizo, C, Carreño, R, Gálvez, V, Kaminsky, G, Mancini, E, Fernandez, J, Nieto, B, Fuentes, M, De la Torre, MA, Bakker, J, Torres, E, Alonso, A, Velayos, C, Saldaña, T, Escribá, A, Krishna, B, Grip, J, Kölegård, R, Vera, A, Sundblad, P, Rooyackers, O, Hernández, G, Naser, B, Jaziri, F, Jazia, AB, Barghouth, M, Ricci, D, Hentati, O, Skouri, W, El Euch, M, Mahfoudhi, M, Gisbert, X, Turki, S, Dąbrowski, M, Bertini, P, Abdelghni, KB, Abdallah, B, Gemelli, C, Maha, BN, Cánovas, J, Sotos, F, López, A, Lorente, M, Burruezo, A, Torres, D, Juliá, C, Guarracino, F, Cuoghi, A, Włudarczyk, A, Hałek, A, Bargouth, M, Bennasr, M, Baldassarri, R, Magnani, S, Uya, J, Abdelghani, KB, Abdallah, TB, Geenen, IL, Parienti, JJ, Straaten, HM, Shum, HP, King, HS, Kulkarni, AP, Pinsky, MR, Chan, KC, Corral, L, Yan, WW, Londoño, JG, Cardenas, CL, Pedrosa, MM, Gubianas, CM, Bertolin, CF, Batllori, NV, Atti, M, Sirvent, JM, Sedation an Delirium Group Hospital Universitari de Bellvitge, Mukhopadhyay, A, Chan, HY, Kowitlawakul, Y, Remani, D, Leong, CS, Henry, CJ, Vera, M, Puthucheary, ZA, Mendsaikhan, N, Begzjav, T, Elias-Jones, I, Lundeg, G, Dünser, M, Espinoza, ED, Welsh, SP, Guerra, E, Poppe, A, Zerpa, MC, Zechner, F, Berdaguer, F, Risso-Vazquez, A, Masevicius, FD, Greaney, D, Dreyse, J, Magee, A, Fitzpatrick, G, Lugo-Cob, RG, Jermaine, CM, Tejeda-Huezo, BC, Cano-Oviedo, AA, Carpio, D, Aydogan, MS, Togal, T, Taha, A, Chai, HZ, Sriram, S, Kam, C, Razali, SS, Sivasamy, V, Randall, D, Kuan, LY, Henriquez, C, Morales, MA, Pires, T, Adwaney, A, Wozniak, S, Gajardo, D, Herrera-Gutierrez, ME, Azevedo, LC, Blunden, M, Prowle, JR, Kirwan, CJ, Thomas, N, Martin, A, Owen, H, Darwin, L, Robertson, CS, Bravo, S, Barrueco-Francioni, J, Conway, D, Atkinson, D, Sharman, M, Barbanti, C, Amour, J, Gaudard, P, Rozec, B, Mauriat, P, M'rini, M, Arias-Verdú, D, Rusin, CG, Leger, PL, Cambonie, G, Liet, JM, Girard, C, Laroche, S, Damas, P, Assaf, Z, Loron, G, Lozano-Saez, R, Lecourt, L, Pouard, P, Hofmeijer, J, Kim, SH, Divatia, JV, Na, S, Kim, J, Jung, CW, Sondag, L, Yoo, SH, Min, SH, Chung, EJ, Quesada-Garcia, G, Lee, NJ, Lee, KW, Suh, KS, Ryu, HG, Marshall, DC, Goodson, RJ, Tjepkema-Cloostermans, MC, Salciccioli, JD, Shalhoub, J, Seller-Pérez, G, Potter, EK, Kirk-Bayley, J, Karanjia, ND, Forni, LG, Kim, S, Creagh-Brown, BC, Bossy, M, Nyman, M, Tailor, A, Figueiredo, A, SPACeR group (Surrey Peri-operative, Anaesthesia and Critical Care Collaborative Research Group), D'Antini, D, Valentino, F, Winkler, MS, Sollitto, F, Cinnella, G, Mirabella, L, Anzola, Y, Bosch, FH, Baladron, V, Villajero, P, Lee, M, Redondo, J, Liu, J, Shen, F, Teboul, JL, Anguel, N, Van Putten, MJ, Beurton, A, Bezaz, N, Richard, C, Park, SY, Monnet, X, Fossali, T, Pereira, R, Colombo, R, Ottolina, D, Rossetti, M, Mazzucco, C, Marchi, A, Porta, A, Catena, E, Piotrowska, K, So, S, Bento, L, Tollisen, KH, Andersen, G, Heyerdahl, F, Jacobsen, D, Van IJzendoorn, MC, Buter, H, Kingma, WP, Navis, GJ, Boerma, EC, Rulisek, J, Zacharov, S, Kim, HS, Jeon, SJ, Namgung, H, Lee, E, Lai, M, Kačar, MB, Cho, YJ, Lee, YJ, Huang, A, Deiana, M, Forsberg, M, Edman, G, Kačar, SM, Höjer, J, Forsberg, S, Freile, MT, Hidalgo, FN, Molina, JA, Lecumberri, R, Rosselló, AF, Travieso, PM, Leon, GT, Uddin, I, Sanchez, JG, Ali, MA, Frias, LS, Rosello, DB, Verdejo, JA, Serrano, JA, Winterwerp, D, Van Galen, T, Vazin, A, Karimzade, I, Belhaj, AM, Zand, A, Ozen, E, Ekemen, S, Akcan, A, Sen, E, Yelken, BB, Kureshi, N, Fenerty, L, Thibault-Halman, G, Aydın, MA, Walling, S, Almeida, R, Seller-Perez, G, Clarke, DB, Briassoulis, P, Kalimeris, K, Ntzouvani, A, Nomikos, T, Papaparaskeva, K, Avsec, D, Politi, E, Kostopanagiotou, G, Crewdson, K, Vardas, K, Rehn, M, Vaz-Ferreira, A, Weaver, A, Brohi, K, Lockey, D, Wright, S, Thomas, K, Mudersbach, E, Baker, C, Mansfield, L, Pozo, MO, Stafford, V, Wade, C, Watson, G, Silva, J, Bryant, A, Chadwick, T, Shen, J, Wilkinson, J, Kapuağası, A, Furneval, J, and Clinical Neurophysiology
- Subjects
Queen Square Neuroanaesthesia and Neurocritical Care Resreach Group ,TAVeM study Group ,Renal Transplantation HUVR ,Flow (psychology) ,lnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4] ,Critical Care and Intensive Care Medicine ,Grupo ESBAGA ,GEMINI ,03 medical and health sciences ,chemistry.chemical_compound ,SPACeR group (Surrey Peri-operative, Anaesthesia and Critical Care Collaborative Research Group) ,0302 clinical medicine ,Critical Care Research Group ,Journal Article ,PRoVENT investigators and the PROVE Network ,Medicine ,Sedation an Delirium Group Hospital Universitari de Bellvitge ,030212 general & internal medicine ,Bioethics work group of SEMICYUC ,GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries) ,SEMICYUC/GETGAG Working Group ,FINNAKI Study Group ,POPC-CB investigators ,business.industry ,Other Research Radboud Institute for Health Sciences [Radboudumc 0] ,SIRAKI group ,030208 emergency & critical care medicine ,EDISVAL Group ,PLUG Working group ,DESIRE (DExmedetomidine for Sepsis in ICU Randomized Evaluation) Trial Investigators ,chemistry ,Anesthesia ,Carbon dioxide ,Breathing ,Department of Professional Development, ESICM ,business ,Nurses of the Central and General ICUs of Shiraz Namazi Hospital - Abstract
Contains fulltext : 172382.pdf (Publisher’s version ) (Open Access)
- Published
- 2016
11. Enhanced laser ranging with superconducting nanowire single photon detector for low dark count rate
- Author
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Kang Lin, Wang Zhi-Zhong, Sun Jun, Xue Li, Tao Xu, Jia Xiao-Qing, Wu Gan-Hua, Dong Guang-Yan, Zhang Sen, Zhang La-Bao, Yan Xia-Chao, Wu Pei-Heng, and Feng Zhi-Jun
- Subjects
Physics ,Time delay and integration ,Photon ,Multi-mode optical fiber ,business.industry ,Detector ,Physics::Optics ,General Physics and Astronomy ,Superconducting nanowire single-photon detector ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Laser ,01 natural sciences ,law.invention ,Wavelength ,Optics ,law ,Optical cavity ,0103 physical sciences ,010306 general physics ,0210 nano-technology ,business - Abstract
Superconducting nanowire single photon detector (SNSPD) is a competitive candidate in laser ranging at 1064 nm wavelength compared with other single photon detectors such as InGaAs/InP APD for its high sensitivity, high time precision and low dark counts. In this paper, we apply our SNSPD to a laser ranging system measuring target in Qinghai lake area with atmospheric scatter. The echo photons are received by telescope, and transport through the multimode fiber to the SNSPD photon-sensitive area. The SNSPD, integrated in an optical cavity with a resonant wavelength of 1064 nm, is fabricated on a MgF2 substrate. The optical absorption of NbN film goes up to 98% according to FDTD simulation, and the system efficiency is measured to be about 40%. A pulsed laser at 1064 nm, featuring a peak power of 12 MW and a pulse width of 10 ns, is adopted in the laser ranging system. In this experiment, we first measure the system intrinsic noise and the environment noise introduced into the laser ranging system after turning off the laser. After that, we measure the echo rate for the target at 126 km, which increases up to 96% with an attenuator of 10 dB at the receiver side. The maximum distance of the laser ranging system is analyzed based on the experimental results of dark count and echo rate through a theoretical model of laser radar. The analysis indicates that signal-to-noise ratio (SNR) is increased smoothly with the accumulation of time. At the same time, we simulate how the dark counts influence the capability of laser ranging system based on SNSPD, the simulated SNR matches well with the experimental data of target at 126 km. Furthermore, the dark counts, accumulation of time and probability of echo photon affect the SNR according to the simulation results, showing that large dark counts would result in SNR fluctuation and signal annihilation when the probability of echo photon is low. Thus, the maximum distance of laser ranging under the assumption of integration time is estimated through the SNR simulated result, showing that a maximum distance is up to 280 km, 40 km far away from APD detector based system under the same conditions mainly due to the very low dark counts of SNSPD. It should be pointed out that the coupling efficiency between SNSPD and the receiving telescope is low for small view field limited by the 62.5 m fiber of SNSPD. Thus, further work is to fabricate SNSPD with a larger coupling area which is possible to increase the maximum distance with improved coupling settings.
- Published
- 2016
12. A High-Efficiency Broadband Superconducting Nanowire Single-Photon Detector with a Composite Optical Structure
- Author
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Wu Pei-Heng, Kang Lin, Gu Min, Zhao Qing-Yuan, Zhang La-Bao, Wan Chao, Jia Tao, Yang Xiao-Zhong, and Xu Rui-Ying
- Subjects
Materials science ,Photon ,business.industry ,Filling factor ,Detector ,Nanowire ,Physics::Optics ,General Physics and Astronomy ,Superconducting nanowire single-photon detector ,Kinetic inductance ,law.invention ,Wavelength ,law ,Optical cavity ,Optoelectronics ,business - Abstract
Superconducting nanowire single-photon detectors (SNSPDs) with a composite optical structure composed of phase-grating and optical cavity structures are designed to enhance both the system detection efficiency and the response bandwidth. Numerical simulation by the finite-difference time-domain method shows that the photon absorption capacity of SNSPDs with a composite optical structure can be enhanced significantly by adjusting the parameters of the phase-grating and optical cavity structures at multiple frequency bands. The absorption capacity of the superconducting nanowires reaches 70%, 72%, 60.73%, 61.7%, 41.2%, and 46.5% at wavelengths of 684, 850, 732, 924, 1256, and 1426 nm, respectively. The use of a composite optical structure reduces the total filling factor of superconducting nanowires to only 0.25, decreases the kinetic inductance of SNSPDs, and improves the count rates.
- Published
- 2015
13. Response properties of NbN superconductor nanowire for multi-photon
- Author
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Zhang La-Bao, Jia Tao, Kang Lin, Qiu Jian, Zhao Qing-Yuan, Wu Pei-Heng, Zhou Yu, Gu Min, and Chen Jian
- Subjects
Quantum optics ,Superconductivity ,Photon ,Materials science ,business.industry ,Photon detector ,Nanowire ,Physics::Optics ,General Physics and Astronomy ,Light irradiation ,Biasing ,Light intensity ,Condensed Matter::Superconductivity ,Optoelectronics ,business - Abstract
In this paper, we study the response properties of multi-photon of NbN superconductor nanowire in superconducting single photon detector (SSPD). We measure the NbN nanowire device's DC characteristics and detection probability for single and multi-photon light pulse signal at a temperature of 3.5 K. The measured results show that the superconducting transition current of superconductor nanowire decreases as light irradiation intensity increases. The photon number detected by SSPD is derived from the slope of detection probability versus light intensity. We find that the detected photon number increases as superconducting nanowire bias current decreases. Moreover, based on quantum optics and hotspot theory, we analyze the mechanism of the multi-photon response of superconducting nanowire semi-quantitatively. This result may be of benefit to understanding SSPD and developing the SSPD with the capability of resolving photon number.
- Published
- 2012
14. Fabrication of superconducting nanowiresingle-photon detector
- Author
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Zhao Qing-Yuan, Cao Chun-Hai, Xu Weiwei, Kang Lin, Chen Jian, Wu Pei-Heng, Jia Tao, Jin Biao-Bing, and Zhang La-Bao
- Subjects
Superconductivity ,Niobium nitride ,Fabrication ,Materials science ,business.industry ,Photon detector ,Detector ,Nanowire ,General Physics and Astronomy ,chemistry.chemical_compound ,Wavelength ,chemistry ,Optoelectronics ,business ,Device failure - Abstract
In this paper,the fabrication details and optimization of micro-fabrication process are presented for developing superconducting nanowire single-photon detectors (SNSPD). Besides,the device failure analysis is also introduced. With those methods,we successfully fabricated high-quality SNSPDs whose maximum system efficiencies were up to 30% for 660 nm wavelength and 4.2% for 1550 nm wavelength according to the single-photon detection experiment. At the dark count rate of 10 c/s,the detection efficiencies were 20% (660 nm) and 3% (1550 nm) with the SNSPD fabricated with above mentioned methods.
- Published
- 2011
15. ASSESSMENT AND SYNERGISTIC USE OF ALOS DATA FOR LAND USE INVESTIGATION AND MONITORING
- Author
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Yeo, Tat Soon, Zou, Bin, Zhang, Jun Ping, Ma, Chang Zheng, and Zhang, La Mei
- Abstract
形態: カラー図版あり, 形態: DVD-ROM1枚, Physical characteristics: Original contains color illustrations, Note: One DVD-ROM, 資料番号: AA0065135120, レポート番号: JAXA-SP-11-007E
- Published
- 2011
16. Evaluation of plastic pipe, paddle wheel aerators
- Author
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Claude E. Boyd, Taufik Ahmad, and Zhang La-fa
- Subjects
Engineering ,Oxygen transfer ,Paddle wheel ,Waste management ,business.industry ,Environmental engineering ,Paddle ,Aquatic Science ,Aeration ,business - Abstract
Paddle wheel aerators made of polyvinyl chloride (PVC) pipe had standard aeration efficiencies (SAE) of 2·0–2·6 kg O2 kWh−1 when paddle wheel diameter was 71–81 cm, paddle wheel speed was < 90 rev min−1, and paddle depth was < 15 cm. The standard oxygen transfer rate (SOTR) was low (1·15–1·85 kg O2 h−1 per 1-m length of paddle wheel). To supply enough oxygen for large ponds, PVC paddle wheels would be impractically long, and, even then, values for SOTR per unit length of paddle wheel and SAE would be lower than those obtained for steel paddle wheels currently used in aquaculture. PVC paddle wheels might have application in small ponds and especially in mariculture ponds where construction of noncorrosive material would be beneficial.
- Published
- 1988
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