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Author Yang, Yunping ♦ Nee, Ingo ♦ Buse, Karsten ♦ Psaltis, Demetri
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ♦ DECAY ♦ ELECTRONS ♦ PHYSICS ♦ PROTONS ♦ TUNNELING
Abstract The lifetimes of nonfixed holograms in LiNbO{sub 3}:Fe crystals with doping levels of 0.05, 0.138, and 0.25 wt% Fe{sub 2}O{sub 3} have been measured in the temperature range from 30 to 180{degree}C. The time constants of the dark decay of holograms stored in crystals with doping levels of 0.05 and 0.25 wt% Fe{sub 2}O{sub 3} obey an Arrhenius-type dependence on absolute temperature T, but yield two activation energies: 1.0 and 0.28 eV, respectively. For these crystals, two different dark decay mechanisms are prevailing, one of which is identified as proton compensation and the other is due to electron tunneling between sites of Fe{sup 2+} and Fe{sup 3+}. The dark decay of holograms stored in crystals with the doping level of 0.138 wt% Fe{sub 2}O{sub 3} is the result of a combination of both effects. {copyright} 2001 American Institute of Physics.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-06-25
Publisher Place United States
Journal Applied Physics Letters
Volume Number 78
Issue Number 26


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