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Proceedings Paper

Instability of a high-power laser field in low-Q dielectric microsphere
Author(s): Mikhail N. Libenson; Vitali E. Gruzdev; Anastasia S. Gruzdeva
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Paper Abstract

A theoretical model to describe localization of high-power electromagnetic field and abrupt local increasing of its amplitude in transparent nonabsorbing dielectric is presented. It is based on formation of unstable field structure in dielectric microstructures. Possibility for field instability to arise is estimated making use of model of diffraction of high-amplitude plane wave on sphere and cylinder which radii are about radiation wavelength. Field instability is shown to be threshold-like phenomenon. There are estimated threshold amplitude of incident wave and field amplification in the microsphere and cylinder. Possible laser-induced processes in transparent dielectric are discussed.

Paper Details

Date Published: 19 May 1998
PDF: 8 pages
Proc. SPIE 3263, Nonlinear Optical Engineering, (19 May 1998); doi: 10.1117/12.308351
Show Author Affiliations
Mikhail N. Libenson, S.I. Vavilov State Optical Institute (Russia)
Vitali E. Gruzdev, S.I. Vavilov State Optical Institute (Russia)
Anastasia S. Gruzdeva, S.I. Vavilov State Optical Institute (Russia)


Published in SPIE Proceedings Vol. 3263:
Nonlinear Optical Engineering
Metin S. Mangir, Editor(s)

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