Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2015-06-10

Journal: Zhongguo Jiguang/Chinese Journal of Lasers

Included Journals: Scopus、ISTIC、PKU、EI

Volume: 42

Issue: 6

ISSN: 02587025

Abstract: 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.