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 58deg was found to enhance the sensor sensitivity by a factor of 5.87 relative to the azimuth angle of 0 deg.
| Original language | English |
|---|---|
| Article number | 063524 |
| Journal | Journal of Nanophotonics |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2012 |
Keywords
- azimuth angle
- grating-coupled surface plasmon resonance
- heterodyne interferometer
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Fingerprint Dive into the research topics of 'Phase-detection-sensitivity enhancement of grating-coupled surface plasmon resonance sensor with light incident at nonzero azimuth angle'. Together they form a unique fingerprint.
Cite this
Kuo, W. K., Chang, C. H., Wu, C. J., & Yu, H. H. (2012). Phase-detection-sensitivity enhancement of grating-coupled surface plasmon resonance sensor with light incident at nonzero azimuth angle. Journal of Nanophotonics, 6(1), [063524]. https://doi.org/10.1117/1.JNP.6.063524