Acta Optica Sinica, Volume. 30, Issue 5, 1354(2010)
Prism Surface Plasmon Wave Sensor System Based on Polarizing Beam Splitter
In the traditional prism surface plasmon resonance (SPR) sensor system,the resonance trough is shallow and the valley is smooth,which causes the resonant wavelength difficult to determine. A novel detecting system is built which added a polarized beam splitter (PBS) based on traditional prism SPR sensor system. In the experiment of alcohol detection,when the S polarized light is filtered,the resonance radius of curvature decreases from 86.2394 to 39.3990,similar to the S polarized light presenced′s 50%,which coincides with the theoretical analysis. Traditional and novel prism SPR sensor system is used to measure 6 kinds of liquid whose refractive index is 1.32-1.39. The resolution ranges from 1.62×10-4 to 1.55×10-4. The detecting system with filter S polarized light that doesn′t excite SPR effect,which making a more acute resonance trough,thus detecting system has been improved.
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Wan Yan, Liang Dakai, Zeng Jie, Zhao Zhiyuan, Zhang Xiaoli. Prism Surface Plasmon Wave Sensor System Based on Polarizing Beam Splitter[J]. Acta Optica Sinica, 2010, 30(5): 1354
Category: Instrumentation, Measurement and Metrology
Received: Jun. 11, 2009
Accepted: --
Published Online: May. 11, 2010
The Author Email: Yan Wan (woshiwanyan@yahoo.com.cn)