Rapid Grating Compensation in Iron-doped Paraelectric KLTN

Mark Ivker*, Aharon J. Agranat

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Material parameters relevant to the photorefractive effect in the paraelectric phase are compared for KLTN doped with iron and KLTN doped with copper. Unlike copper-doped crystals, iron-doped KLTN shows an efficient thermal fixing process occurring at room temperature. Measurements as a function of temperature and applied field reveal the compensation to be a thermally activated process with an activation energy of 1.05 eV, but the process is only weakly dependent on field. FTIR measurements indicate the presence of hydrogen and conductivity measurements suggest that hydrogen migration is the dominant contribution to the conductivity, reinforcing the conclusion that the crystals show "thermal fixing" at room temperature.

Original languageAmerican English
Title of host publicationPhotorefractive Effects, Materials, and Devices, PR 2001
PublisherOptica Publishing Group (formerly OSA)
Number of pages6
ISBN (Electronic)1557526931
StatePublished - 2001
EventPhotorefractive Effects, Materials, and Devices, PR 2001 - Delavan, United States
Duration: 8 Jul 2001 → …

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


ConferencePhotorefractive Effects, Materials, and Devices, PR 2001
Country/TerritoryUnited States
Period8/07/01 → …

Bibliographical note

Publisher Copyright:
© 2001 Optical Society of America.


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