Photorefractive and domain gratings in barium titanate

Cudney, R. S.; Fousek, J.; Zgonik, M.; Günter, Peter; Garrett, M. H.; Rytz, Daniel

doi:10.1063/1.110153

Cited by 62 publications

(13 citation statements)

References 7 publications

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“…Among these techniques are thermal fixing, electrical fixing, and two-photon or sensitized recording. Recently, both thermal fixing [3][4][5] and electrical fixing 6,7 have been demonstrated in nominally undoped BaTiO 3 crystals. The only report of sensitized recording in BaTiO 3 was that by Buse, Holtmann, and Krätzig 8 who demonstrated short-lived sensitization involving two defect species in a nominally undoped sample.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic properties of photorefractiveBaTiO3double doped with cerium and rhodium

Schwartz

Wechsler

2000

Phys. Rev. B

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We have grown and characterized crystals of BaTiO 3 double doped with Ce and Rh. This material has defect charge states that can easily be manipulated by illumination with different wavelengths of light and may have potential for nonvolatile holographic storage using a two-step, sensitized recording scheme. Electron paramagnetic resonance ͑EPR͒, photo-EPR, optical absorption, and light-induced optical-absorption measurements were used to identify the charge states, probe the electronic structure, and locate the ionization levels associated with the Ce and Rh centers relative to the band edges of the BaTiO 3 host. In addition, the effects of illumination at various wavelengths on the defect states were used to develop a qualitative sensitization model.

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Section: Introductionmentioning

confidence: 99%

Spectroscopic properties of photorefractiveBaTiO3double doped with cerium and rhodium

Schwartz

Wechsler

2000

Phys. Rev. B

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“…These jumps have been observed in LiNbO 3 under intense illumination and at elevated temperatures and were used as evidence for a domain switching contribution to hologram fixing in this material. 12 Current transients in BaTiO 3 during electrical fixing 13,14 have also been observed. However, the domain switching arising from the uniform depolarization of the crystal during the electrical fixing pulse and the photoinduced space-charge field were not isolated.…”

Section: Introductionmentioning

confidence: 77%

Optical and electrical Barkhausen noise induced by recording ferroelectric domain holograms

et al. 1995

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Ferroelectric domain gratings with periods of the order of an optical wavelength are induced in strontium barium niobate by photorefractive space-charge fields. We measure the Barkhausen noise in current and diffraction efficiency while optically recording domain gratings and show that the two are strongly correlated in time. Significant random depolarization occurs under high-intensity illumination. We deduce the kinetics of the domain inversion process from the shape of the current transients.

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“…Furthermore, holograms using such materials can be recorded without the need for any postprocessing or developing. Typical photorefractive materials studied for the holographic application are lithium niobate (LiNbO 3 ) [7], barium titanate (BaTiO 3 ) [8,9], and strontium barium niobate (SBN) [10]. However, difficulty in long-term storage has been a critical drawback in the photorefractive crystals due to the intrinsic volatility of stored gratings.…”

Section: Introductionmentioning

confidence: 99%

Ag-doped inorganic–organic hybrid films for rewritable hologram memory application

Kawamura

2015

J Sol-Gel Sci Technol

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This review paper reports our recent progress in the synthesis of Ag-doped inorganic-organic hybrid films through the sol-gel method for rewritable hologram memory application. The Ag-doped hybrid films showed absorbance change upon ultraviolet (UV) radiation and subsequent heat treatment. The origin of the absorbance change was attributed to the deposition of Ag nanoparticles (NPs) by UV radiation and the Ag dissociation by heat treatment. Bromination of Ag resulted in the sensitization of the films to blue laser irradiation which would be used for a hologram recording device. Chlorination of Ag enabled the films to have rewritability of hologram as well as sensitivity to blue laser irradiation. The size and dispersion state of Ag NPs in the films were suitable for hologram recording media. The diffraction efficiency of [1 % was obtained, which is sufficient to read the recorded hologram from the films. Graphical Abstract

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Photorefractive and domain gratings in barium titanate

Cited by 62 publications

References 7 publications

Spectroscopic properties of photorefractiveBaTiO3double doped with cerium and rhodium

Spectroscopic properties of photorefractiveBaTiO3double doped with cerium and rhodium

Optical and electrical Barkhausen noise induced by recording ferroelectric domain holograms

Ag-doped inorganic–organic hybrid films for rewritable hologram memory application

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