Applying the angular spectrum representation to calculate the optical force density generated in dielectrics by tightly focused laser beams

Bruno Anghinoni, Luis C. Malacarne, Tomaž Požar and Nelson G. C. Astrath ()
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Bruno Anghinoni: Department of Physics, Universidade Estadual de Maringá, Maringá, Paraná 87020-900, Brazil
Luis C. Malacarne: Department of Physics, Universidade Estadual de Maringá, Maringá, Paraná 87020-900, Brazil
Tomaž Požar: Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana 1000, Slovenia
Nelson G. C. Astrath: Department of Physics, Universidade Estadual de Maringá, Maringá, Paraná 87020-900, Brazil

International Journal of Modern Physics C (IJMPC), 2023, vol. 34, issue 12, 1-26

Abstract: The Angular Spectrum Representation (ASR) is applied to describe semi-analytically the optical force densities acting on linear dielectric media when a quasi-monochromatic tightly focused Gaussian beam is applied. This method is seen to be inherently faster than conventional finite-difference schemes. Numerical simulations of the optical force densities were also performed and found to be in agreement with the literature, providing a complementary tool for the study of opto-mechanical effects in matter.

Keywords: Electromagnetic force; focused beams; numerical electrodynamics; angular spectrum representation (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S0129183123501632

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