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| VOLUME 18 (1973) | ISSUE 11 |
PAGE 679
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Dynamic holographic gratings in cadmium sulfide
Borshch A. A., Brodin M. S . , Ovchar V.V. , Odulov S . G ., Soskin M . S
A number of media suitable for the recording of phase holograms in the dynamic regime are known at present. These are ferroelectric crystals, in which the change of the refractive index is due to a redistribution of the space charges [1] and the time constant fluctuates between 0.1 and 103 sec, solutions of absorbing media with recorded thermal holograms (10"ц — 10~6 sec) [2], and silicon crystals ((2 —3) 10 sec) [3]. We report here the results of an investigation of dynamic holographic gratings in CdS crystals, with a characteristic lifetime not larger than 5xl0~9 sec, i.e., the shortest known at present.
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![](/ps/1751/article_26637_800_head.png "A number of media suitable for the recording of phase holograms in the dynamic regime are known at present. These are ferroelectric crystals, in which the change of the refractive index is due to a redistribution of the space charges [1] and the time constant fluctuates between 0.1 and 10<sup>3</sup> sec, solutions of absorbing media with recorded thermal holograms (10"<sup>ц</sup> — 10~<sup>6</sup> sec) [2], and silicon crystals ((2 —3) 10 sec) [3]. We report here the results of an investigation of dynamic holographic gratings in CdS crystals, with a characteristic lifetime not larger than 5xl0~<sup>9</sup> sec, i.e., the shortest known at present.")