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Your search keyword '"Tang, Baiquan"' showing total 12 results
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12 results on '"Tang, Baiquan"'

2. Real-time imaging of autofluorescence NAD(P)H in single human neutrophils

Author

Pan, Leiting, Zhang, Xinzheng, Song, Kun, Tang, Baiquan, Cai, Wei, Wu, Xian, Rupp, Romano A., and Xu, Jingjun

Subjects
Imaging systems -- Methods, NADP (Coenzyme) -- Properties, Neutrophils -- Properties, Resolution (Optics) -- Research, Fluorescence -- Research, Astronomy, Physics
Abstract

Real-time detection of NAD(P)H is particularly important for understanding physiological activities of neutrophils. We scrutinize the performance of weak light detection systems with electron multiplying CCDs (EMCCDs) with regard to the feasibility of valid investigations by autofluorescence NAD(P)H in single human neutrophils. The low-noise amplification facility of EMCCDs is indeed just adequate to permit detection at an irradiation level where neither quenching nor phototoxic effects occur. For demonstration, a neutrophil respiratory burst was triggered and observed in real time. Our low-intensity detection system fulfills all requirements for real-time investigations at high spatiotemporal resolution in the field of neutrophil physiology and pathology. OCIS codes: 170.3880, 110.2970, 260.2510.

Published
2009

5. 普洱茶的非线性光学效应与光速调控

Author

ZHANG, WenDing, primary, QI, JiWei, additional, TANG, BaiQuan, additional, GAO, Feng, additional, WANG, ZhenHua, additional, ZHANG, XinZheng, additional, ZHANG, GuoQuan, additional, XU, JingJun, additional, and XIANG, YinXiao, additional

Published
2010
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6. PMMA中全息光栅相移研究

Author

Li, Wei, primary, Tang, Baiquan, additional, Zhang, Xinzheng, additional, Gao, Feng, additional, Liu, Longchang, additional, Wu, Qiang, additional, Pan, Leiting, additional, Lou, Cibo, additional, Guo, Shangyu, additional, Rupp, Romano A., additional, and Xu, Jingjun, additional

Published
2010
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10. Investigation on the phase shifts of extinction and phase gratings in polymethyl methacrylate

Author

Li, Wei, Tang, Baiquan, Zhang, Xinzheng, Gao, Feng, Liu, Longchang, Wu, Qiang, Pan, Leiting, Lou, Cibo, Guo, Shangyu, Rupp, Romano A., and Xu, Jingjun

Abstract

The phase shifts of the extinction and refractive index gratings to the illumination pattern are revealed in doped polymethyl methacrylate (PMMA). The dynamic process of these shifts is studied via two-wave coupling at 351 nm. It is shown that these shifts are from the strain and the shrinkage inside the sample and accompanied with the photo-repolymerization process during the building process of the holographic grating. Such shifts will cause obvious energy exchange between the two recording beams and enough attention should be paid to the nonlocal property of the holographic gratings of the material in the application.

Published
2010

11. Light-induced backward scattering in LiNbO[sub 3]:Fe,Zn.

Author

Wu, Qiang, Xu, Jingjun, Sun, Qian, Zhang, Xinzheng, Qiao, Haijun, Tang, Baiquan, Zhang, Guangyin, and Gu, Min

Subjects
BACKSCATTERING, LITHIUM niobate, CRYSTALS
Abstract

We investigated the light-induced backward scattering in doubly doped lithium niobate crystals and observed an intensity threshold effect. It will be shown that scattering microregions are locally recorded in the sample by holographic interaction due to the existence of the threshold effect. Experimental results of multilayer recording point out that this property could be used for high-density multilayer-like bit data optical storage while keeping high signal-to-noise ratio. [ABSTRACT FROM AUTHOR]

Published
2002
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12. Effect of nanocrystals on up-conversion luminescence of Er^(3+),Yb^(3+) co-doped glass-ceramics

Author

Yu, Hua, Zhao, Lijuan, Meng, Jie, Liang, Qin, Yu, Xuanyi, Tang, Baiquan, and Xu, Jingjun

Abstract

Different up-conversion luminescent spectra of Er^(3+) ions were observed in the oxyfluoride glass-ceramics. The ratio of two fluorides in the original compositions was modified in order to form different nanocrystals. The intensity of up-conversion luminescence increased sharply when the ratio of PbF2 and CdF2 was 40:10. The data of differential thermal analysis and X-ray diffraction were used to explain the optimization fluoride ratio. The intensity of up-conversion luminescence is not only decided by the crystallizability but also mainly related with the stoichiometric proportion of fluoride nanocrystals in the glass-ceramics.

Published
2005

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