Self-diffraction from free surface relief gratings in a photorefractive Bi12TiO20 crystal

Autor(en): Stepanov, S
Korneev, N
Gerwens, A
Buse, K
Stichwörter: Physics; Physics, Applied
Erscheinungsdatum: 1998
Herausgeber: AMER INST PHYSICS
Journal: APPLIED PHYSICS LETTERS
Volumen: 72
Ausgabe: 8
Startseite: 879
Seitenende: 881
Zusammenfassung: 
Experimental results on self-diffraction of periodically phase-modulated laser beams from a relief grating formed on a free surface of a cubic photorefractive Bi12TiO20 crystal due to the piezoelectric effect are reported. Periodic intensity modulations of the reflected beams up to 10(-2) due to energy exchange at this unshifted phase grating are measured, The modulation depends linearly on the fringe spacing and on the amplitude of an externally applied electric de field. The observed self-diffraction process is independent of the light polarization. (C) 1998 American Institute of Physics.
ISSN: 00036951
DOI: 10.1063/1.120923

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