Light-induced phase and amplitude gratings in centrosymmetric Gadolinium Gallium garnet doped with calcium | Zendy

Mostafa A. Ellabban | Zendy; Martin Fally | Zendy; R. A. Rupp | Zendy; L. Kovács | Zendy

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Light-induced phase and amplitude gratings in centrosymmetric Gadolinium Gallium garnet doped with calcium

Author(s) -

Mostafa A. Ellabban,

Martin Fally,

R. A. Rupp,

L. Kovács

Publication year - 2006

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.14.000593

Subject(s) - gadolinium gallium garnet , materials science , optics , refractive index , gallium , gadolinium , phase (matter) , doping , photorefractive effect , optoelectronics , wavelength , absorption (acoustics) , visible spectrum , chemistry , physics , epitaxy , organic chemistry , layer (electronics) , metallurgy , composite material

The photosensitive properties of a centrosymmetric gadolinium gallium garnet crystal doped with calcium are investigated at room temperature. Elementary holograms can be recorded over a wide range of wavelengths in the visible spectral range. The photosensitive properties are studied experimentally using beam coupling and angular response experiments. Mixed absorption and refractive-index gratings are observed and their amplitudes and relative phases determined. Moreover, the candidate centers that are responsible for the photorefractive effect are discussed.

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