Distinguishing the number of captured microspheres in dual-beam optical trap by measuring the back light signal | |
Zhou, Deyuan1; Chen, Xinlin1; Xiao, Guangzong1,2; Han, Xiang1; Jin, Shilong1; Xiao, Guangzong (xiaoguangzong@nudt.edu.cn) | |
2017 | |
会议名称 | Applied Optics and Photonics China: Optoelectronics and Micro/Nano-Optics, AOPC 2017 |
会议录名称 | AOPC 2017: Optoelectronics and Micro/Nano-Optics |
卷号 | 10460 |
会议日期 | 2017-06-04 |
会议地点 | Beijing, China |
出版者 | SPIE |
产权排序 | 2 |
摘要 | Optical traps have been widely used in a large variety of applications ranging from biophysics to nano-sciences. More than one microscopic object can be captured in an optical trap. In the practical application, it is always necessary to distinguish and control the number of captured objects in the optical trap. In this paper, a novel method has been presented to distinguish the number of trapped microspheres by measuring the intensity of back signal. Clear descent of the back signal has been observed when a microsphere is captured in the center of optical trap. The relative coupling efficiency of back signal decreases as the number of captured microspheres increases both in experiment and theory. This method contributes to miniaturization and integration of applied systems due to getting rid of the imaging system, and is generally applicable to the area of nanoparticle trapping. © 2017 SPIE. |
作者部门 | 瞬态光学技术国家重点实验室 |
DOI | 10.1117/12.2284995 |
收录类别 | EI ; ISTP |
ISBN号 | 9781510614017 |
语种 | 英语 |
ISSN号 | 0277786X |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/29873 |
专题 | 瞬态光学研究室 |
通讯作者 | Xiao, Guangzong (xiaoguangzong@nudt.edu.cn) |
作者单位 | 1.College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, 410073, China 2.State Key Laboratory of Transient Optics and Photonic, Chinese Academy of Sciences, Xian, 710068, China |
推荐引用方式 GB/T 7714 | Zhou, Deyuan,Chen, Xinlin,Xiao, Guangzong,et al. Distinguishing the number of captured microspheres in dual-beam optical trap by measuring the back light signal[C]:SPIE,2017. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Distinguishing the n(378KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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