Optical amplification of photoinduced polarizability gratings in phosphate glasses

Autor:	M. K. Balakirev, L. I. Vostrikova, V. A. Smirnov, M. V. Entin
Rok vydání:	2004
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Isotropy Grating Polarization (waves) Molecular physics Phosphate glass Wavelength Optics Amplitude Polarizability Electric field business
Zdroj:	Journal of Experimental and Theoretical Physics Letters. 80:26-29
ISSN:	1090-6487 0021-3640
DOI:	10.1134/1.1800209
Popis:	It is experimentally demonstrated that second-order polarizability gratings preliminarily recorded using bichromatic light in a phosphate glass can be amplified under the action of monochromatic radiation. The amplification effect takes place irrespective of the polarization and direction of propagation of the amplifying radiation and is achieved at various wavelengths. The phenomenon is related to the asymmetry of optical transitions between local centers in an isotropic medium in the presence of electric field. It is theoretically shown that this system may feature the formation of alternating electric field domains with dimensions depending on the grating amplitude.
Databáze:	OpenAIRE
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