Title :
New type small-angle sensor based on the surface plasmon resonance technology
Author :
Shinn-Fwu Wang ; Chih-Ju Lin ; Cheng-Lung Hsu ; Hung-Shing Tsai ; Che-Yu Liu
Author_Institution :
Dept. of Electron. Eng., Ching Yun Univ., Jhongli, Taiwan
Abstract :
In this paper, a new type small-angle sensor based on the surface plasmon resonance (SPR) technology is proposed. Two right angle prisms are mounted on two high precision rotation stages, respectively. When the light source passes through this experimental structure, we can achieve the small rotation angle only by measuring the output powers by uses of two photo-detectors. The resolution of the system can reach 1.2×10-6 radian.
Keywords :
angular measurement; attenuated total reflection; optical prisms; optical sensors; photodetectors; surface plasmon resonance; attenuated total internal reflection; photo detector; right angle prism; rotation angle; small angle measurement; small angle sensor; surface plasmon resonance technology; Biomedical optical imaging; Goniometers; Optical films; Optical reflection; Optical refraction; Optical surface waves; Plasmons; Resonance; Rotation measurement; Surface waves; Attenuated Total-Internal Reflection (ATR); Kretchmann´s configuration; Small angle measurement; Surface Plasmon Resonance (SPR);
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3352-0
DOI :
10.1109/IMTC.2009.5168513
