Radiation force of scalar and electromagnetic twisted Gaussian Schell-model beams

Chengliang Zhao, Yangjian Cai, Olga Korotkova

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

Radiation force of a focused scalar twisted Gaussian Schellmodel (TGSM) beam on a Rayleigh dielectric sphere is investigated. It is found that the twist phase affects the radiation force and by raising the absolute value of the twist factor it is possible to increase both transverse and longitudinal trapping ranges at the real focus where the maximum onaxis intensity is located. Numerical calculations of radiation forces induced by a focused electromagnetic TGSM beam on a Rayleigh dielectric sphere are carried out. It is found that radiation force is closely related to the twist phase, degree of polarization and correlation factors of the initial beam. The trapping stability is also discussed.

Original languageEnglish (US)
Pages (from-to)21472-21487
Number of pages16
JournalOptics Express
Volume17
Issue number24
DOIs
StatePublished - Nov 23 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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