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

Chengliang Zhao | Zendy; Yangjian Cai | Zendy; Olga Korotkova | Zendy

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

Author(s) -

Chengliang Zhao,

Yangjian Cai,

Olga Korotkova

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.021472

Subject(s) - physics , optics , rayleigh scattering , polarization (electrochemistry) , degree of polarization , radiation , beam (structure) , gaussian beam , radiation pressure , radiant intensity , electromagnetic radiation , dielectric , gaussian , twist , scattering , quantum mechanics , geometry , chemistry , mathematics

Radiation force of a focused scalar twisted Gaussian Schell-model (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 on-axis 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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