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	SPR sensor based on phase modulation and polarization interferometry - art. no. 60473I
	Liu Le ; He Yonghong ; Guo Jihua
	2010-05-10 ; 2010-05-10
会议名称	Fourth International Conference on Photonics and Imaging in Biology and Medicine, Pts 1 and 2 ; 4th International Conference on Photonics and Imaging in Biology and Medicine ; Tianjin, PEOPLES R CHINA ; Web of Science
关键词	SPR surface plasmon resonance optical biosensor SURFACE-PLASMON RESONANCE DNA Biophysics Optics Physics, Applied Imaging Science & Photographic Technology Spectroscopy
中文摘要	In this paper, a new Surface Plasmon Resonance (SPR) sensor for refractive index (RI) based on polarization interferometry and phase modulation is presented. Its sensitivity is not a direct function on intensity variations(partial derivative ar/partial derivative n), nor on phase variations(partial derivative phi/partial derivative n), but on ((partial derivative r/partial derivative n)Delta phi + r(partial derivative phi/partial derivative n)) (here r and phi represent the amplitude and the phase of reflectivity; n represents the refractive index). According to our theoretical calculation, the dynamic range of this kind of SPR sensor is much wider than that of sensors based on either variations of intensity or variations of phase. This sensor can also provide very high resolution comparable with SPR sensors base on phase variations which has the highest sensitivities till now.
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING ; BELLINGHAM ; 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19966]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Le,He Yonghong,Guo Jihua. SPR sensor based on phase modulation and polarization interferometry - art. no. 60473I[C]. 见:Fourth International Conference on Photonics and Imaging in Biology and Medicine, Pts 1 and 2, 4th International Conference on Photonics and Imaging in Biology and Medicine, Tianjin, PEOPLES R CHINA, Web of Science.

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