Backward-wave four-wave mixing and coherent oscillation in CdF 2 :Ga,Y

Uesu, Yoshiaki; Yasukawa, Ken; Saitô, Nobuhiko; Odoulov, S.; Shcherbin, K.; Ryskin, A. I.; Shcheulin, A. S.

doi:10.1007/s00340-004-1428-3

Cited by 3 publications

(2 citation statements)

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“…Phase conjugation and coherent optical oscillations in CdF 2 :Ga,Y crystal were reported in [49]. The interference of a relatively weak light beam coherent with two counter-propagate powerful (pump) beams formed the phase-conjugate mirror that, together with a conventional mirror, created the semi-linear cavity in which a coherent oscillator arose as a result of the interaction of signal and reversal weak waves.…”

Section: Cdf2 Crystals With Bistable Impurity Centers As a Hologramentioning

confidence: 99%

“…The high nonlinear susceptibility χ (3)′ of CdF 2 crystals with bistable centers and high spatial frequency of recorded gratings makes these crystals a suitable object for the observation of backward-wave four-wave mixing, which is the underlying process for optical phase conjugation and also for various kinds of frequency-degenerate coherent optical oscillators. Phase conjugation and coherent optical oscillations in CdF 2 :Ga,Y crystal were reported in [ 49 ]. The interference of a relatively weak light beam coherent with two counter-propagate powerful (pump) beams formed the phase-conjugate mirror that, together with a conventional mirror, created the semi-linear cavity in which a coherent oscillator arose as a result of the interaction of signal and reversal weak waves.…”

Section: Cdf 2 Crystals With Bistable Impurity mentioning

confidence: 99%

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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: Cdf2 Crystals With Bistable Impurity Centers As a Hologramentioning

confidence: 99%

Section: Cdf 2 Crystals With Bistable Impurity mentioning

confidence: 99%