Selective enhancement of spatial harmonics of a photorefractive grating
- 1 August 1988
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 5 (8) , 1814-1821
- https://doi.org/10.1364/josab.5.001814
Abstract
We demonstrate a technique by which the amplitudes of the various spatial harmonics of a holographic grating written in a photorefractive material may be increased with respect to one another. We show that for holographic recording with a moving intensity grating, the grating velocity may be chosen so as to amplify selectively a given spatial harmonic. This result is derived analytically and tested by measurements of the first three spatial harmonics of a grating written in a photorefractive Bi12SiO20 crystal.Keywords
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