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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Trapping of a micro-bubble by non-paraxial Gaussian beam: computation using the FDTD method

Seung-Yong Sung and Yong-Gu Lee  »View Author Affiliations

Optics Express, Vol. 16, Issue 5, pp. 3463-3473 (2008)

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Optical forces on a micro-bubble were computed using the Finite Difference Time Domain method. Non-paraxial Gaussian beam equation was used to represent the incident laser with high numerical aperture, common in optical tweezers. The electromagnetic field distribution around a micro-bubble was computed using FDTD method and the electromagnetic stress tensor on the surface of a micro-bubble was used to compute the optical forces. By the analysis of the computational results, interesting relations between the radius of the circular trapping ring and the corresponding stability of the trap were found.

© 2008 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:

Original Manuscript: January 7, 2008
Revised Manuscript: February 4, 2008
Manuscript Accepted: February 6, 2008
Published: February 29, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Seung-Yong Sung and Yong-Gu Lee, "Trapping of a micro-bubble by non-paraxial Gaussian beam: computation using the FDTD method," Opt. Express 16, 3463-3473 (2008)

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