Low-temperature photorefractive effects in Bi12GeO20

Istvan Foldvari, Joel J. Martin, Charles A. Hunt, Richard C. Powell, Roger J. Reeves, Scott A. Holmstrom

Research output: Contribution to journalArticle

5 Citations (Scopus)


The four-wave mixing (FWM) photorefractive response was investigated in pure and Fe-doped Bi12GeO20 (BGO) crystals. A significant difference was found in the temperature dependence of the FWM diffraction efficiency between the undoped BGO and BGO:Fe. Under the write conditions used for these experiments the decay of the photorefractive signal can be characterized by a single dominant dark decay time. Different decay times are found for undoped and Fe-doped BGO. Combining the present low-temperature results with previous observations, a general model is suggested for describing the photorefractive effect in sillenites and its temperature dependence.

Original languageEnglish
Pages (from-to)25-32
Number of pages8
JournalOptical Materials
Issue number1
Publication statusPublished - Feb 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Low-temperature photorefractive effects in Bi<sub>12</sub>GeO<sub>20</sub>'. Together they form a unique fingerprint.

  • Cite this

    Foldvari, I., Martin, J. J., Hunt, C. A., Powell, R. C., Reeves, R. J., & Holmstrom, S. A. (1993). Low-temperature photorefractive effects in Bi12GeO20. Optical Materials, 2(1), 25-32. https://doi.org/10.1016/0925-3467(93)90041-X