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论文类型：期刊论文

发表时间：2015-06-10

发表刊物：Zhongguo Jiguang/Chinese Journal of Lasers

收录刊物：EI、PKU、ISTIC、Scopus

卷号：42

期号：6

ISSN号：02587025

摘要：In order to improve the resolution of phase modulated surface plasmon resonance (SPR) measurement technology. The signal processing technology is optimized. In the differential phase SPR biosensor based on Mach-Zehnder configuration, the SPR phase can be extracted by comparing the phase difference between the interference signals of p-polarization and the reference signals of s-polarization. The 2-path interference optical signal is recevied by computer. According to the mathematical theory and signal processing knowledge, select and processing the interference optical signals. The phase difference of 2-path signal is analyzed at the same time. In the signal processing technology, the phase difference of ups and downs is 0.006  , and the sensitivity limit is 4.7  10-7 RIU. ?, 2015, Science Press. All right reserved.