Improving the sensitivity of fiber-optic SPR sensor via radially polarized beam excitation

被引：0
|
作者：
阎杰 [1 ]
鲁拥华 [1 ]
王沛 [1 ]
顾春 [1 ]
郑荣升 [1 ]
陈勇 [1 ]
明海 [1 ]
詹其文 [2 ]
机构：
[1] Department of Physics,University of Science and Technology of China,Anhui Key Laboratory of Optoelectronic Science and Technology
[2] Electro-Optics Graduate Program,University of Dayton
来源：
Chinese Optics Letters | 2009年 / 7卷 / 10期
基金：
中国国家自然科学基金;
关键词：
SPR; mode;
D O I：
暂无
中图分类号：
O436.3 [偏振与色散];
学科分类号：
070207 ; 0803 ;
摘要：
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,surfaceplasmon can be excited more efficiently atthe sensor surface,which results in an obvious improvement ofthe sensitivity.Our experiments demonstrate that the sensitivity in the case of RPB illumination is threetimes higher than that of linearly polarized beam illumination.
引用
收藏
页码：909 / 911
页数：3
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