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Showing 2 results for Birefringence
Investigation of Thermal Dispersion and Thermally-Induced Birefringence on High-Power Double Clad Yb:Glass Fiber Laser
H. Nadgaran, M. Sabaeian,
Volume 2, Issue 1 (2-2008)
Abstract
In this work the effects of heat generation on the modes of Yb:Glass double clad fiber laser were investigated. The thermal dispersion and thermally-induced birefringence were considered when the gain medium becomes an anisotropic medium. The results showed considerable modifications of laser modes profiles, in particular for transfer magnetic (TM) and transfer electric (TE) modes which their polarization vectors possess radial and azimuthal components.
Birefringence Properties and Surface Relief Grating Formation on Methylacrylate Polymers with Photochromic Side Chains
S. Ahmadi-Kandjani, P. Tajalli, H. Khoshsima, R. Barille, J. M. Nunzi, P. Kucharski, H. Tajalli,
Volume 4, Issue 1 (1-2010)
Abstract
We have studied light-induced birefringence (LIB) and surface relief grating (SRG) formation in the series of methylacrylate polymers. The effect of material structure such as length of photochromic side chain, glass transition temperature and molecular structure of azo units on LIB and SRG are studied. The optical formation of self-induced SRG on films of these materials is also presented.
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