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

Chengliang Zhao; Yangjian Cai; Olga Korotkova

doi:10.1364/OE.17.021472

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

Chengliang Zhao, Yangjian Cai, Olga Korotkova

Physics

Research output: Contribution to journal › Article › peer-review

76 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 language	English (US)
Pages (from-to)	21472-21487
Number of pages	16
Journal	Optics Express
Volume	17
Issue number	24
DOIs	https://doi.org/10.1364/OE.17.021472
State	Published - Nov 23 2009

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AU - Cai, Yangjian

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N2 - 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.

AB - 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.

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