OSA's Digital Library

Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 12, Iss. 1 — Jan. 1, 2014
  • pp: 011403–

Optimal beam diameter for lateral optical forces on microspheres at a water-air interface

Mincheng Zhong, Xi Wang, Jinhua Zhou, Ziqiang Wang, and Yinmei Li  »View Author Affiliations


Chinese Optics Letters, Vol. 12, Issue 1, pp. 011403- (2014)


View Full Text Article

Acrobat PDF (306 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

Optical tweezers with a low numerical aperture microscope objective is used to manipulate the microspheres at the water-air interface. In this letter, we determine the optimal optical trap for the lateral manipulation of microspheres at a water-air interface. The experimental results show that the trapping force is influenced by the expansion of the trapping beam at the back aperture of the objective. The optimal filling ratio of 0.65 is suggested for lateral optical manipulation at the water-air interface. The lateral trapping forces at the water-air interface are theoretically investigated with the ray-optics model. The numerical results show that the lateral trapping forces can be changed by shrinking the diameter of the trapping laser beam. The numerical results are in accordance with the experimental results.

© 2014 Chinese Optics Letters

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(080.5692) Geometric optics : Ray trajectories in inhomogeneous media

ToC Category:
Lasers and Laser Optics

Citation
Mincheng Zhong, Xi Wang, Jinhua Zhou, Ziqiang Wang, and Yinmei Li, "Optimal beam diameter for lateral optical forces on microspheres at a water-air interface," Chin. Opt. Lett. 12, 011403- (2014)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-12-1-011403

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited