Acta Optica Sinica, Volume. 31, Issue 3, 312003(2011)
Intensity-Modulated Surface Plasmon Resonance Array Sensor Based on Polarization Control
Intensity-modulated surface plasmon resonance (SPR) array sensor based on polarization control is introduced. The influence of incident angle, gold firm thickness, polarizer angle, wavelength and data processing on its sensitivity and measuring range is analyzed and sensor systems with wavelength set at 632.8 nm and 740 nm are experimentally studied. It is concluded that intensity-modulated SPR array sensor turns the polarization state change of light wave during the excitation of surface plasmons into intensity change to detect in an easily controllable measurement range. Using an appropriate parameter selection, high sensitivity can be produced with a simple optical and mechanical structure and lower production costs. This scheme can be widely applied to the high-throughput detections of bimolecular interaction analysis, environmental monitoring, food safety, pharmaceutical analysis, biomedical engineering and other fields.
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Sun Boshu, Huang Zihao, Wang Xiaoping, Liu Yuling, Liu Xu. Intensity-Modulated Surface Plasmon Resonance Array Sensor Based on Polarization Control[J]. Acta Optica Sinica, 2011, 31(3): 312003
Category: Instrumentation, Measurement and Metrology
Received: Aug. 2, 2010
Accepted: --
Published Online: Feb. 21, 2011
The Author Email: Boshu Sun (sunboshu1206@gmail.com)