Share Email Print
cover

Journal of Nanophotonics

Phase-detection-sensitivity enhancement of grating-coupled surface plasmon resonance sensor with light incident at nonzero azimuth angle
Author(s): Wen-Kai Kuo; Chih-Hao Chang; Chien-Jang Wu; Hsin Her Yu
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have numerically and experimentally demonstrated the enhancement of phase detection sensitivity of a grating-coupled surface plasmon resonance (GCSPR) sensor by using incident light at a nonzero azimuth angle. Phase detection measurements were performed using an electro-optic heterodyne interferometer. When the GCSPR sensor was rotated azimuthally by 0 deg and 58 deg, the phase detection sensitivities were approximately 3.2×10-7 RIU and 5.5×10-8 RIU, respectively. The azimuth angle of 58 deg was found to enhance the sensor sensitivity by a factor of 5.87 relative to the azimuth angle of 0 deg.

Paper Details

Date Published: 31 October 2012
PDF: 7 pages
J. Nanophoton. 6(1) 063524 doi: 10.1117/1.JNP.6.063524
Published in: Journal of Nanophotonics Volume 6, Issue 1
Show Author Affiliations
Wen-Kai Kuo, National Formosa Univ. (Taiwan)
Chih-Hao Chang, National Formosa Univ. (Taiwan)
Chien-Jang Wu, National Taiwan Normal Univ. (Taiwan)
Hsin Her Yu, National Formosa Univ. (Taiwan)


© SPIE. Terms of Use
Back to Top