Photorefractive properties of reduced BaTiO3:Rh at wavelengths of 514 nm and 633 nm

J. Y. Chang, C. Y. Huang, S. H. Duan, C. C. Sun

Research output: Contribution to journalConference articlepeer-review

Abstract

We report that two beam coupling and response time of reduced BaTiO3:Rh at wavelengths of 514 nm and 633 nm. For the as-grown, the carriers are holes for both of wavelengths of 514 nm and 633 nm. When reduced at the atmosphere of 10-10 atm oxygen partial pressure, the carrier is electron for wavelength of 514 nm, and hole for 633 nm. With higher reduction, the carriers are electrons for both of wavelengths. Two beam coupling gain is also dependent on the reduction level and incident wavelength. For the as-grown, the trap density is 23×1016 cm-3 for 514 nm and 15×1016 cm-3 for 633 nm. For the sample reduced at the atmosphere of 10-10 atm oxygen partial pressure, the trap density decreases and is 5×1016 cm-3 for 514 nm and 2×1016 cm-3 for 633 nm. With higher reduction, the trap density increases and is 12×1016 cm-3 for 514 nm and 5×1016 cm-3 for 633 nm.

Original languageEnglish
Pages (from-to)24-31
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3470
DOIs
StatePublished - 1998
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV - San Diego, CA, United States
Duration: 22 Jul 199823 Jul 1998

Keywords

  • BaTiO
  • Photorefraction
  • Rh-doped
  • Two beam coupling

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