Computational toolbox for optical tweezers in geometrical optics
Abstract
Optical tweezers have found widespread application in many fields, from physics to biology. Here, we explain in detail how optical forces and torques can be described within the geometrical optics approximation and we show that this approximation provides reliable results in agreement with experiments for particles whose characteristic dimensions are larger than the wavelength of the trapping light. Furthermore, we provide an object-oriented software package implemented in MatLab for the calculation of optical forces and torques in the geometrical optics regime: \texttt{OTGO - Optical Tweezers in Geometrical Optics}. We provide all source codes for \texttt{OTGO} as well as the documentation and code examples -- e.g., standard optical tweezers, optical tweezers with elongated particle, windmill effect, Kramers transitions between two optical traps -- necessary to enable users to effectively employ it in their research and teaching.
Keywords
Cite
@article{arxiv.1402.5439,
title = {Computational toolbox for optical tweezers in geometrical optics},
author = {Agnese Callegari and Mite Mijalkov and A. Burak Gököz and Giovanni Volpe},
journal= {arXiv preprint arXiv:1402.5439},
year = {2015}
}
Comments
9 pages, 8 figures