| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5008458 | Sensors and Actuators A: Physical | 2017 | 6 Pages |
Abstract
A birefringent-refraction (BR) sensor for measuring refractive indices of liquid solutions based on phase interrogation in a heterodyne interferometer is proposed. We theoretically investigate a comprehensive performance comparison between a surface plasmon resonance (SPR) sensor and the proposed BR sensor in terms of sensitivity and the dynamic range in refractive index measurements. In comparison with a typical SPR sensor, the simulations and experiments show that BR sensors can achieve the same order of sensitivity but with a flexible incident angle and a wide RI range.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Ruey-Ching Twu, Chia-Wei Hsueh,