CdF2 crystals with bistable impurity centers as media of the real-time holography

Ryskin, A. I.; Shcheulin, A. S.; Kazanskiĭ, S. A.; Angervaks, A. E.

doi:10.1016/j.jlumin.2006.08.020

Cited by 6 publications

(1 citation statement)

References 31 publications

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“…To characterize the crystal response for real-time holography, the temperature dependencies of diffraction efficiency and decay time of phase holograms were studied for the temperature ranges of 300–400 K (CdF 2 :Ga,Y, Figure 18 ) and 77–300 K (CdF 2 :In, Figure 19 ) [ 45 , 46 , 47 ]. The hologram recording was executed using single pulses of second harmonic of Nd:YAG laser at 532 nm of 20 ns duration with pulse energy equal to 400 mJ/cm 2 (CdF 2 :Ga,Y), and single pulses of ruby laser at 693 nm of 50 ns duration with pulse energy equal to 300 mJ/cm 2 (CdF 2 :In).…”

Section: Cdf 2 Crystals With Bistable Impurity mentioning

confidence: 99%

Semiconductor CdF2:Ga and CdF2:In Crystals as Media for Real-Time Holography

2012

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Monocrystalline cadmium fluoride is a dielectric solid that can be converted into a semiconductor by doping with donor impurities and subsequent heating in the reduction atmosphere. For two donor elements, Ga and In, the donor (“shallow”) state is a metastable one separated from the ground (“deep”) state by a barrier. Photoinduced deep-to-shallow state transition underlies the photochromism of CdF2:Ga and CdF2:In. Real-time phase holograms are recorded in these crystals capable of following up optical processes in a wide frequency range. The features of photochromic transformations in CdF2:Ga and CdF2:In crystals as well as holographic characteristics of these media are discussed. Exemplary applications of CdF2-based holographic elements are given.

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Section: Cdf 2 Crystals With Bistable Impurity mentioning

confidence: 99%