Formation and fixing of diffraction gratings in new photorefractive lead barium niobate (Pb1-xBaxNb2O6) crystals

Myeongkyu Lee, Robert S. Feigelson, Alice Liu, Lambertus Hesselink

Research output: Contribution to journalArticle

Abstract

Lead barium niobate (Pb1-xBaxNb2O6) crystals have been grown by the vertical Bridgman method, and the formation and thermal fixing of photorefractive gratings in these crystals were investigated. A diffraction efficiency of 8.5% was achieved in a 2.3 mm thick Pb0.5Ba0.5Nb2O6 crystal. As-grown crystals contained a high concentration of protons (H+) essential for the thermal fixing of gratings. In addition, the proton concentration could be increased by heat treatment in a humid atmosphere and decreased in an ambient or oxygen atmosphere. The fixing efficiency increased with increasing proton concentration.

Original languageEnglish
Pages (from-to)S427-S429
JournalJournal of the Korean Physical Society
Volume32
Issue numberSUPPL. 2
Publication statusPublished - 1998 Feb 1

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niobates
gratings (spectra)
fixing
barium
crystals
protons
gratings
atmospheres
Bridgman method
heat treatment
oxygen
diffraction

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Lee, Myeongkyu ; Feigelson, Robert S. ; Liu, Alice ; Hesselink, Lambertus. / Formation and fixing of diffraction gratings in new photorefractive lead barium niobate (Pb1-xBaxNb2O6) crystals. In: Journal of the Korean Physical Society. 1998 ; Vol. 32, No. SUPPL. 2. pp. S427-S429.
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Formation and fixing of diffraction gratings in new photorefractive lead barium niobate (Pb1-xBaxNb2O6) crystals. / Lee, Myeongkyu; Feigelson, Robert S.; Liu, Alice; Hesselink, Lambertus.

In: Journal of the Korean Physical Society, Vol. 32, No. SUPPL. 2, 01.02.1998, p. S427-S429.

Research output: Contribution to journalArticle

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