Optical forces on a spheroidal microparticle using a classical optics approximation

Héctor Sosa-Martínez; Julio C. Gutiérrez-Vega

doi:10.1117/12.825294

20 August 2009 Optical forces on a spheroidal microparticle using a classical optics approximation

Héctor Sosa-Martínez, Julio C. Gutiérrez-Vega

Proceedings Volume 7400, Optical Trapping and Optical Micromanipulation VI; 74002B (2009) https://doi.org/10.1117/12.825294
Event: SPIE NanoScience + Engineering, 2009, San Diego, California, United States

Abstract

In this study we report a detailed description of the trapping forces exerted on an arbitrary oriented micron-sized dielectric spheroid by means of a counterpropagating dual-beam optical trap with a Gaussian transverse field pattern, using a classical optics approximation. Our analysis includes the calculation of the transverse and axial trapping efficiencies as function of the normalized beam waist separation distance, normalized spheroid size, effective index of refraction of the microparticle and ellipticity of the spheroid. The trapping forces produced are compared with those obtained for spheres.

Citation Download Citation

Héctor Sosa-Martínez and Julio C. Gutiérrez-Vega "Optical forces on a spheroidal microparticle using a classical optics approximation", Proc. SPIE 7400, Optical Trapping and Optical Micromanipulation VI, 74002B (20 August 2009); https://doi.org/10.1117/12.825294

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