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Investigation of the characteristics of a wavefront-reversing mirror utilizing a photorefractlve strontium barium niobate crystal
O. M. Vokhnik, Yu. S. Kuz'minov, N. M. Polozkov
Abstract:
An experimental investigation was made of the time and energy characteristics of a wavefrontreversing mirror with a self-intersecting laser beam using a strontium barium niobate crystal as the nonlinear medium. A study was made of the dependence of the reflection coefficient R of the wavefront-reversing mirror and of the reversed beam formation time τ on the length of the wave vector of the induced grating and the refractive index. It was found that in a certain range of wave vector lengths, the reflection coefficient showed a sharp drop. A theoretical explanation of the observed dependences was based on calculations of the strength of the coupling of the light waves in the medium. The dependences of R and τ on the intensity and divergence of the laser beam were studied. The conditions for conservation and erasure of the refractive index grating in the crystal were investigated.
Received: 19.06.1985
Citation:
O. M. Vokhnik, Yu. S. Kuz'minov, N. M. Polozkov, “Investigation of the characteristics of a wavefront-reversing mirror utilizing a photorefractlve strontium barium niobate crystal”, Kvantovaya Elektronika, 13:8 (1986), 1633–1637 [Sov J Quantum Electron, 16:8 (1986), 1066–1069]
Linking options:
https://www.mathnet.ru/eng/qe7240 https://www.mathnet.ru/eng/qe/v13/i8/p1633
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