Abstract
A slant grating was recorded with two laser beams incident on photorefractive crystal in an external dc electric field. Two-dimensional perturbative analytical solution for the first two-order space-charge field for steady-state photorefractive slant grating recording has been obtained. It is shown that the inclusion of the longitudinal component of the space-charge field during photorefractive two-wave coupling can predict reduction of the fundamental harmonic and enhancement or reduction of the second-order harmonic for various applied field strength and various grating slant angles. The dependence of the first two-order harmonics on the slant angle and on the applied field strength is examined.
| Original language | English |
|---|---|
| Pages (from-to) | 423-425 |
| Number of pages | 3 |
| Journal | Chinese Physics Letters |
| Volume | 15 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1998 |
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