Calculation of optical trapping forces on a dielectric sphere in the ray optics regime produced by a radially polarized laser beam

Hikaru Kawauchi, Kazuhiro Yonezawa, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

148 Citations (Scopus)

Abstract

We calculated the optical trapping forces on a microscopic particle in the ray optics regime for the case where a radially polarized laser beam is applied. A higher axial trapping efficiency than for a circularly polarized doughnut beam was predicted due to the large p polarization component. Three-dimensional optical trapping was expected for particles with a larger index of refraction and for objectives with a smaller numerical aperture.

Original languageEnglish
Pages (from-to)1839-1841
Number of pages3
JournalOptics Letters
Volume32
Issue number13
DOIs
Publication statusPublished - 2007 Jul 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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