Optical forces and optical torques on various materials arising from optical lattices in the Lorentz-Mie regime
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Jia-2011-Optical forces and optical torques on various materials.pdf
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Author(s)
Jia, Lin
Thomas, Edwin L.
Date Issued
September 2011
Journal
Physical Review B
Publisher
American Physical Society (APS)
Citation
Jia, Lin, and Edwin Thomas. “Optical Forces and Optical Torques on Various Materials Arising from Optical Lattices in the Lorentz-Mie Regime.” Physical Review B 84.12 (2011): n. pag. Web. 17 Feb. 2012. © 2011 American Physical Society
Version
Final published version
Abstract
By combining the Maxwell stress tensor with the finite-difference time-domain (FDTD) method, we calculate the optical force and optical torque on particles from optical lattices. We compare our method to the two-component method and the electrostatic approximation (ESA). We also discuss how particle's refractive index, shape, size, and the morphology of an optical lattice influence optical forces and the condition to form stable optical trapping wells. In addition to optical forces, optical torque from one dimensional (1D) optical lattice is discussed for particles having anisotropic shapes; metastable and stable equilibrium orientation states are found. A detailed understanding of the optical force and torque from optical lattices has significant implications for optical trapping, micromanipulation, and sorting of particles.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.84.125128
