Comparison of various approaches to the calculation of optically induced forces

Various approaches used for the calculation of optically induced forces applied to a transparent optical medium imbedded in a close plane optical resonator are analyzed. The forces are calculated by means of analysis of a change in the eigen frequency and energy stored in the resonator at various po...

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Bibliographic Details
Published in:Annals of physics 2012-09, Vol.327 (9), p.2288-2300
Main Authors: Torchigin, V.P., Torchigin, A.V.
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPARATIVE EVALUATIONS
Density
ELECTROMAGNETISM
Helmholtz pressure
Lorentz density force
LORENTZ FORCE
Mathematical analysis
Maxwell stress tensor
Optical electrostriction
Optical forces
Optical resonators
OPTICS
Physics
Planes
RESONATORS
Stress tensors
STRESSES
TENSORS
VISIBLE RADIATION
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Summary:Various approaches used for the calculation of optically induced forces applied to a transparent optical medium imbedded in a close plane optical resonator are analyzed. The forces are calculated by means of analysis of a change in the eigen frequency and energy stored in the resonator at various positions of the medium. It is shown that results obtained are identical to those calculated by means of approaches based on the Maxwell stress tensor, based on an analysis of a change in the momentum of light. An exception is for results obtained on the base of last versions of the Lorentz density force. ► There are no Lorentz forces in a homogeneous optical medium. ► A net force produced by an inhomogeneous electrostriction pressure is equal to zero. ► Any distributions of the Lorentz force in a homogeneous optical medium are misleading.
ISSN:0003-4916
1096-035X
DOI:10.1016/j.aop.2012.04.012