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Title: An optical tweezer in asymmetrical vortex Bessel-Gaussian beams

Abstract

We study an optical micromanipulation that comprises trapping, rotating, and transporting 5-μm polystyrene microbeads in asymmetric Bessel-Gaussian (BG) laser beams. The beams that carry orbital angular momentum are generated by means of a liquid crystal microdisplay and focused by a microobjective with a numerical aperture of NA = 0.85. We experimentally show that given a constant topological charge, the rate of microparticle motion increases near linearly with increasing asymmetry of the BG beam. Asymmetric BG beams can be used instead of conventional Gaussian beam for trapping and transferring live cells without thermal damage.

Authors:
; ;  [1];  [2]
  1. Image Processing Systems Institute, 151 Molodogvardeiskaya St., 443001 Samara (Russian Federation)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
22597855
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 120; Journal Issue: 2; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; APERTURES; ASYMMETRY; AUGMENTATION; BEAMS; BESSEL FUNCTIONS; DAMAGE; GAUSS FUNCTION; LASERS; LIQUID CRYSTALS; ORBITAL ANGULAR MOMENTUM; POLYSTYRENE; TOPOLOGY; TRAPPING; VORTICES

Citation Formats

Kotlyar, V. V., Kovalev, A. A., E-mail: alexeysmr@mail.ru, Porfirev, A. P., and Department of Technical cybernetics, Samara State Aerospace University, Samara 443086. An optical tweezer in asymmetrical vortex Bessel-Gaussian beams. United States: N. p., 2016. Web. doi:10.1063/1.4958309.
Kotlyar, V. V., Kovalev, A. A., E-mail: alexeysmr@mail.ru, Porfirev, A. P., & Department of Technical cybernetics, Samara State Aerospace University, Samara 443086. An optical tweezer in asymmetrical vortex Bessel-Gaussian beams. United States. doi:10.1063/1.4958309.
Kotlyar, V. V., Kovalev, A. A., E-mail: alexeysmr@mail.ru, Porfirev, A. P., and Department of Technical cybernetics, Samara State Aerospace University, Samara 443086. 2016. "An optical tweezer in asymmetrical vortex Bessel-Gaussian beams". United States. doi:10.1063/1.4958309.
@article{osti_22597855,
title = {An optical tweezer in asymmetrical vortex Bessel-Gaussian beams},
author = {Kotlyar, V. V. and Kovalev, A. A., E-mail: alexeysmr@mail.ru and Porfirev, A. P. and Department of Technical cybernetics, Samara State Aerospace University, Samara 443086},
abstractNote = {We study an optical micromanipulation that comprises trapping, rotating, and transporting 5-μm polystyrene microbeads in asymmetric Bessel-Gaussian (BG) laser beams. The beams that carry orbital angular momentum are generated by means of a liquid crystal microdisplay and focused by a microobjective with a numerical aperture of NA = 0.85. We experimentally show that given a constant topological charge, the rate of microparticle motion increases near linearly with increasing asymmetry of the BG beam. Asymmetric BG beams can be used instead of conventional Gaussian beam for trapping and transferring live cells without thermal damage.},
doi = {10.1063/1.4958309},
journal = {Journal of Applied Physics},
number = 2,
volume = 120,
place = {United States},
year = 2016,
month = 7
}
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