Artículos de revistas
ELECTROPHOTOCHROMIC GRATINGS IN PHOTOREFRACTIVE BI12TIO20 CRYSTALS
Registro en:
Applied Optics. Optical Soc Amer, v. 31, n. 11, n. 1787, n. 1793, 1992.
0003-6935
WOS:A1992HM67500018
Autor
KAMSHILIN, AA
FREJLICH, J
GARCIA, PM
Institución
Resumen
We present the first experimental demonstration of quasi-permanent holographic recordings in Bi12TiO20 crystals through what is to our knowledge a new electrophotochromic effect. This arises from spatial redistribution of some centers that are different from photorefractive centers. Light diffracted from this photochromic grating records a secondary photorefractive hologram. Interaction between both gratings results in asymmetric polarization properties and reversible electric field enhancement of diffracted beams. 31 11 1787 1793