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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 16, Iss. 10 — Oct. 1, 1999
  • pp: 1725–1729

Dynamic bulk photovoltaic effect in photorefractive barium calcium titanate

N. Korneev, D. Mayorga, H. Veenhuis, K. Buse, and E. Krätzig  »View Author Affiliations

JOSA B, Vol. 16, Issue 10, pp. 1725-1729 (1999)

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Oscillating photocurrents are generated in a photorefractive iron-doped barium calcium titanate crystal (Ba0.77Ca0.23TiO3; BCT) by illumination with an oscillating interference pattern. Non-steady-state photocurrents arise usually from the interaction of a space-charge field with an oscillating photoconductivity pattern. However, a second-harmonic signal of the oscillating photocurrents is observed in BCT, which is present without any space-charge field. The main features of the new effect can be explained by consideration of a dynamic, i.e., time-dependent, bulk photovoltaic effect. The effect might be useful for optically addressed memories or optical correlators.

© 1999 Optical Society of America

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(100.4550) Image processing : Correlators
(160.2900) Materials : Optical storage materials
(160.5320) Materials : Photorefractive materials
(190.5330) Nonlinear optics : Photorefractive optics

N. Korneev, D. Mayorga, H. Veenhuis, K. Buse, and E. Krätzig, "Dynamic bulk photovoltaic effect in photorefractive barium calcium titanate," J. Opt. Soc. Am. B 16, 1725-1729 (1999)

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