Two-beam optical tweezers built by a two-core fiber

Libo Yuan; Zhihai Liu; Jun Yang; Chunying Guan

doi:10.1117/12.785205

16 May 2008 Two-beam optical tweezers built by a two-core fiber

Libo Yuan, Zhihai Liu, Jun Yang, Chunying Guan

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70040R (2008) https://doi.org/10.1117/12.785205
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

We present an abruptly tapered twin-core fiber optical tweezers, which is fabricated by fusing and drawing the twin-core fiber (TCF). The two beams guided by the TCF, and a larger converge angle between the two beams are made due to the abrupt tapered shape. The two beams converged at the micro-lensed tip, then forming a fast divergent optical field. The microscopic particle trapping performance of this special designed tapered TCF tip is investigated. The distribution of the optical field emerging from the tapered fiber tip is simulated based on the beam propagation method (BPM). By using this two-beam combined technique, a strong enough gradient forces well is obtained for microscopic particles trapping in three-dimensional. The abruptly tapered TCF optical tweezers is rigid and easy to handle, especially useful for build-up a multi-tweezers system for trapping and manipulating micro-scale particles.

Citation Download Citation

Libo Yuan, Zhihai Liu, Jun Yang, and Chunying Guan "Two-beam optical tweezers built by a two-core fiber", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70040R (16 May 2008); https://doi.org/10.1117/12.785205

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available