Thermal fixing of volume holograms in potassium niobate

Xiaolin Tong; Min Zhang; Amnon Yariv; Aharon Agranat

doi:10.1063/1.117982

Thermal fixing of volume holograms in potassium niobate

Xiaolin Tong^*, Min Zhang, Amnon Yariv, Aharon Agranat

^*Corresponding author for this work

The Institute of Applied Physics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Volume holograms are thermally fixed in a pure and an iron doped potassium niobate crystal through the screening of a photorefractive space-charge field by a nonphotoactive species at elevated temperature (110 °C). The nonphotoactive species is identified as the hydrogen ion. Fixed holograms are reconstructed at different temperatures. A diffraction efficiency of 16% in a 6 mm thick KNbO₃:Fe sample is measured. The time constant and activation energy associated with the thermal induced decay of the hologram are determined to be 2.9×10^-7 s and 0.81 eV for the KNbO₃:Fe sample, and 1.35×10_-7 s and 0.79 eV for the pure KNbO₃ sample.

Original language	English
Pages (from-to)	3966-3968
Number of pages	3
Journal	Applied Physics Letters
Volume	69
Issue number	26
DOIs	https://doi.org/10.1063/1.117982
State	Published - 23 Dec 1996

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title = "Thermal fixing of volume holograms in potassium niobate",

abstract = "Volume holograms are thermally fixed in a pure and an iron doped potassium niobate crystal through the screening of a photorefractive space-charge field by a nonphotoactive species at elevated temperature (110 °C). The nonphotoactive species is identified as the hydrogen ion. Fixed holograms are reconstructed at different temperatures. A diffraction efficiency of 16% in a 6 mm thick KNbO3:Fe sample is measured. The time constant and activation energy associated with the thermal induced decay of the hologram are determined to be 2.9×10-7 s and 0.81 eV for the KNbO3:Fe sample, and 1.35×10-7 s and 0.79 eV for the pure KNbO3 sample.",

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AU - Tong, Xiaolin

AU - Zhang, Min

AU - Yariv, Amnon

AU - Agranat, Aharon

PY - 1996/12/23

Y1 - 1996/12/23

N2 - Volume holograms are thermally fixed in a pure and an iron doped potassium niobate crystal through the screening of a photorefractive space-charge field by a nonphotoactive species at elevated temperature (110 °C). The nonphotoactive species is identified as the hydrogen ion. Fixed holograms are reconstructed at different temperatures. A diffraction efficiency of 16% in a 6 mm thick KNbO3:Fe sample is measured. The time constant and activation energy associated with the thermal induced decay of the hologram are determined to be 2.9×10-7 s and 0.81 eV for the KNbO3:Fe sample, and 1.35×10-7 s and 0.79 eV for the pure KNbO3 sample.

AB - Volume holograms are thermally fixed in a pure and an iron doped potassium niobate crystal through the screening of a photorefractive space-charge field by a nonphotoactive species at elevated temperature (110 °C). The nonphotoactive species is identified as the hydrogen ion. Fixed holograms are reconstructed at different temperatures. A diffraction efficiency of 16% in a 6 mm thick KNbO3:Fe sample is measured. The time constant and activation energy associated with the thermal induced decay of the hologram are determined to be 2.9×10-7 s and 0.81 eV for the KNbO3:Fe sample, and 1.35×10-7 s and 0.79 eV for the pure KNbO3 sample.

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Thermal fixing of volume holograms in potassium niobate

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