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Proceedings Paper

Graded-index fiber tip optical tweezers
Author(s): Yuan Gong; Ai-Yan Ye; Yu Wu; Yunjiang Rao; Yao Yao; Song Xiao
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Paper Abstract

Optical fiber tweezers based on a graded-index multimode fiber (GIMMF) tip is proposed. Light propagation characteristics and gradient force distribution near the GIMMF tip are numerically investigated, which are further compared with that of optical fiber tips based on conventional single mode fibers. The simulated results indicated that by selecting optimal GIMMF length, the gradient force of the GIMMF tip tweezers is about 4 times higher than that of the SMF tip tweezers with a same shape. To prove the feasibility of such a new concept, optical trapping of yeast cells with a diameter of ~5 μm using the chemically-etched GIMMF tip is experimentally demonstrated and the trapping force is also calculated.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892409 (15 October 2013); doi: 10.1117/12.2033669
Show Author Affiliations
Yuan Gong, Univ. of Electronic Science and Technology of China (China)
Ai-Yan Ye, Univ. of Electronic Science and Technology of China (China)
Yu Wu, Univ. of Electronic Science and Technology of China (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)
Yao Yao, Univ. of Electronic Science and Technology of China (China)
Song Xiao, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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