標題: | Measurement of the concentration of a solution with surface plasmon resonance heterodyne interferometry |
作者: | Chen, KH Hsu, CC Su, DC 光電工程學系 Department of Photonics |
關鍵字: | surface plasmon resonance;concentration measurement;heterodyne interferometry |
公開日期: | 1-七月-2003 |
摘要: | A linearly polarized light beam is incident on the boundary surface between the thin metal film of a surface plasmon resonance (SPR) apparatus and the tested solution. If the incident angle is very near to the resonant angle, then the phase difference between p- and s-polarizations of the reflected light is changed with the concentration of the solution. The phase difference can be measured accurately by heterodyne interferometry. Based on these effects, a method for measuring the concentration of a solution is presented. Because the reflected light is measured, only a small quantity of the solution is required. In addition, the method has the advantages of both common-path interferometry and heterodyne interferometry. (C) 2003 Society of Photo-Optical Instrumentation Engineers. |
URI: | http://dx.doi.org/10.1117/1.1577115 http://hdl.handle.net/11536/27771 |
ISSN: | 0091-3286 |
DOI: | 10.1117/1.1577115 |
期刊: | OPTICAL ENGINEERING |
Volume: | 42 |
Issue: | 7 |
起始頁: | 1884 |
結束頁: | 1887 |
顯示於類別: | 期刊論文 |