Microparticle Detection With Optical Microfibers

被引：7
|
作者：
Wei, Zhengtong [1 ]
Song, Zhangqi [1 ]
Zhang, Xueliang [1 ]
Meng, Zhou [1 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 06期
关键词：
Evanescent field; microparticle; optical microfiber; SCATTERING; SILICA;
D O I：
10.1109/LPT.2013.2241422
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrate a method for microparticle detection with an optical microfiber (OM). When a microparticle adheres to the uniform waist region of an OM, the transmitted loss of OM will increase due to the evanescent field perturbation. The additional loss of OM, caused by the adhered microparticle with different refractive indices and diameters, has been researched and simulated based on the evanescent field theory. We experimentally demonstrate the possibility of the method with a simple setup. Dust and alumina microparticles are detected. Experimental results have shown that the diameter of dust microparticle and the number of adhered alumina microparticles, can be estimated by measuring the additional loss of the sensing OM.
引用
收藏
页码：568 / 571
页数：4
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