Chinese Optics Letters, 2009, 7 (10): 909, Published Online: Oct. 16, 2009
Improving the sensitivity of fiber-optic SPR sensor via radially polarized beam excitation 
Download： 1399次
光纤传感 表面等离子体共振 轴向偏振光 060.2370 Fiber optics sensors 240.6680 Surface plasmons 310.5448 Polarization, other optical properties
Abstract
We study the sensing properties of an intensity-modulated fiber-optic surface plasmon resonance (SPR) sensor using radially polarized beam (RPB). Because of the rotational symmetry of fiber and RPB, surface plasmon can be excited more efficiently at the sensor surface, which results in an obvious improvement of the sensitivity. Our experiments demonstrate that the sensitivity in the case of RPB illumination is three times higher than that of linearly polarized beam illumination.
Jie Yan, Yonghua Lu, Pei Wang, Chun Gu, Rongsheng Zheng, Yong Chen, Hai Ming, Qiwen Zhan. Improving the sensitivity of fiber-optic SPR sensor via radially polarized beam excitation[J]. Chinese Optics Letters, 2009, 7(10): 909.
PDF全文
