Two-beam coupling of a series of reduced BaTiO3:Rh at wavelengths of 514 nm and 633 nm

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Five annealed BaTiO3:Rh crystals, including as-grown and those reduced at 10-5 atm, 10-10 atm, 10-12 atm, and 10-14 atm oxygen partial pressures, were produced and investigated by two-beam coupling at wavelengths of 514 nm and 633 nm. The carrier type is a function of reduction degree and incident wavelength. The compensation points are around 10-3 atm and 10-11 atm oxygen partial pressures for 514 nm and 633 nm, respectively. The electrooptic gain is controlled by the photoconductivity-dark conductivity ratio, effects from the deep and shallow traps, and hole-electron competition, which are dependent on the reduction degree and incident wavelength.

Original languageEnglish
Pages (from-to)827-831
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume68
Issue number5
DOIs
StatePublished - May 1999

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