Research on the enhancement of signal-to-noise ratio of light-addressable potentiometric sensor by optical focusing

Dong CHEN; Shi-bin LIU; Shi-min YIN; Jin-tao LIANG

doi:10.1007/s11801-016-5206-3

Journals >Optoelectronics Letters >Volume 12 >Issue 1 >Page 27 > Article

Optoelectronics Letters
Vol. 12, Issue 1, 27 (2016)

Research on the enhancement of signal-to-noise ratio of light-addressable potentiometric sensor by optical focusing

Dong CHEN^1,2, Shi-bin LIU¹, Shi-min YIN^3,4, and Jin-tao LIANG^3,4,*

Author Affiliations

¹School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China

²School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China

³School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China

⁴Guangxi Experiment Center of Information Science, Guilin 541004, China

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DOI: 10.1007/s11801-016-5206-3 Cite this Article

CHEN Dong, LIU Shi-bin, YIN Shi-min, LIANG Jin-tao. Research on the enhancement of signal-to-noise ratio of light-addressable potentiometric sensor by optical focusing[J]. Optoelectronics Letters, 2016, 12(1): 27 Copy Citation Text

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Abstract

For enhancing the response of light-addressable potentiometric sensor (LAPS) and further improving its signal- to-noise ratio (SNR), an optical focusing method is adopted. Experimental research and theoretical analysis reveal that the magnitude of responsive signal is increased by optical focusing, and the SNR is improved remarkably. These research results indicate that the optical focusing is an effective approach for improving SNR of LAPS.

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