Numerical computation of the back-focal plane interference pattern by a spherical scatterer under a focused Gaussian beam

Yong-Gu Lee; Sun-Uk Hwang

doi:10.1117/12.860309

27 August 2010 Numerical computation of the back-focal plane interference pattern by a spherical scatterer under a focused Gaussian beam

Yong-Gu Lee, Sun-Uk Hwang

Author Affiliations +

Proceedings Volume 7762, Optical Trapping and Optical Micromanipulation VII; 77620F (2010) https://doi.org/10.1117/12.860309
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

Three-dimensional position of optically trapped dielectric particles can be detected by measuring the back-focal plane interference pattern of incident and scattered fields. Time-domain surface current based near zone to far zone transformation was implemented to compute the interference pattern by a spherical scatterer under a focused Gaussian beam. Computed results are compared with experimental data for validations.

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Yong-Gu Lee and Sun-Uk Hwang "Numerical computation of the back-focal plane interference pattern by a spherical scatterer under a focused Gaussian beam", Proc. SPIE 7762, Optical Trapping and Optical Micromanipulation VII, 77620F (27 August 2010); https://doi.org/10.1117/12.860309

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