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Your search keyword '"Lin, Chengyou"' showing total 125 results
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125 results on '"Lin, Chengyou"'

8. Periodic optical rogue waves

Author

Ding, Yingchun, Gao, Junbo, Zhang, Fengli, Chen, Zhaoyang, Lin, Chengyou, and Yu, M. Y.

Subjects
Physics - Optics
Abstract

Random excitation of intense periodic highly-localized single-cycle light pulses in a stochastic background by continuous-wave stimulated Brillouin scattering in long optical fibers with weak feedback is found experimentally. Events with low period numbers are dominant and the optical feedback is crucial for the phenomenon. A three-wave coupling model for the phenomenon is proposed. The results are in good qualitative agreement with the observed phenomenon. The latter should be relevant to the understanding of similar rogue wave events in other nonlinear dissipative systems., Comment: 9 pages, 3 figures

Published
2013

26. Design of high-performance Au-Ag-dielectric-graphene based surface plasmon resonance biosensors using genetic algorithm.

Author

Lin, Chengyou and Chen, Shujing

Subjects
*SURFACE plasmon resonance, *BIOSENSORS, *GENETIC algorithms, *DIELECTRIC materials, *GRAPHENE, *MOLECULAR structure
Abstract

In this paper, we presented a design method of a surface plasmon resonance (SPR) biosensor with high performance using a genetic algorithm (GA). The constraint conditions of the sensitivity and the reflectivity at the resonance angle were used in the merit function (MF) of GA to achieve simultaneous optimization of the sensitivity and the resolution. By using the proposed method, we designed an Au-Ag-TiO2-graphene based SPR biosensor at first and compared its performance with a traditional Au-graphene based SPR biosensor. The resolution of the designed biosensor was nearly three times that of the traditional one on the premise of the same sensitivity. In addition, a series of SPR biosensors with sensitivities ranging from 50 to 180°/RIU and improved resolutions was designed by using different target sensitivities in MF. A comparison of the designed biosensors with the traditional Au-graphene SPR biosensor was also done, and the biosensors with higher sensitivity and meanwhile higher resolution than the traditional one were demonstrated to be existed. Lastly, the influences of target reflectivity at the resonance angle and the prism on the design of the Au-Ag-TiO2-graphene based SPR biosensor were investigated. It is believed that the proposed design method based on the genetic algorithm could be applied to optimize the performances of a SPR biosensor with an arbitrary multilayer structure. [ABSTRACT FROM AUTHOR]

Published
2019
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37. Design of Polycarbonate/Polymethyl Methacrylate Polymer Multilayer Alternating Films with High Reflectivity in Near-Infrared Region

Author

Yang Weimin, Lin Chengyou, Huang Liang, Shi Meinong, and Jiao Zhiwei

Subjects
chemistry.chemical_classification, Materials science, chemistry, Polymethyl methacrylate, High reflectivity, visual_art, Near-infrared spectroscopy, visual_art.visual_art_medium, Polymer, Electrical and Electronic Engineering, Polycarbonate, Composite material, Atomic and Molecular Physics, and Optics
Published
2019

48. Bipolar-rogue-wave structures

Author

Ding, Yingchun, primary, Zhang, Bin, additional, Feng, Qi, additional, Tang, Xin, additional, Liu, Zhongxuan, additional, Chen, Zhaoyang, additional, and Lin, Chengyou, additional

Published
2017
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50. Optimized Dielectric Film for Maximum Sensitivity of Nearly Guided‐Wave Surface Plasmon Resonance Sensor.

Author

Lin, Chengyou and Chen, Shujing

Subjects
*SURFACE plasmon resonance, *DIELECTRIC films, *SENSITIVITY analysis, *ELECTRIC field strength, *REFRACTIVE index
Abstract

In this paper, the dielectric film of the nearly guided‐wave surface plasmon resonance (NGWSPR) sensor is optimized to achieve the maximum sensitivity. By optimizing the thickness of dielectric (Si, AlAs, TiO2, and Si3N4) film in a NGWSPR sensor, the optimized sensitivity of the NGWSPR sensor can be obtained. The optimized sensitivity of the NGWSPR sensor with AlAs film is 5.43, 8.47, and 24.41% higher than that of the NGWSPR sensor with Si, TiO2, or Si3N4 film respectively. In addition, by analyzing the electric field intensity of NGWSPR sensors, the origin of highest sensitivity achieved by the NGWSPR sensor with AlAs film is investigated. Furthermore, by comparing the optimized sensitivity of the NGWSPR sensor with different refractive index of dielectric film, the existence of optimal refractive index of dielectric film for the maximum sensitivity is confirmed. Besides, the effects of refractive index of prism on the optimal dielectric refractive index and the maximum sensitivity are also studied. [ABSTRACT FROM AUTHOR]

Published
2018
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