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Optics Letters

Optics Letters


  • Vol. 24, Iss. 13 — Jul. 1, 1999
  • pp: 908–910

Persistent light-induced absorption in oxidized iron-doped barium titanate crystals

U. van Stevendaal, K. Buse, H. Malz, and E. Krätzig  »View Author Affiliations

Optics Letters, Vol. 24, Issue 13, pp. 908-910 (1999)

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Illumination of oxidized iron-doped BaTiO3 crystals with visible or ultraviolet light yields absorption changes of as much as 1300 m-1 that are stable at room temperature. These photochromic effects cannot be erased by light, but heating the crystal to a moderate temperature (100 °C) can switch it back to its initial state. These effects, in particular the optical irreversibility, might be of interest, e.g., for optical control of charge-transport properties and for persistent data storage.

© 1999 Optical Society of America

OCIS Codes
(160.5320) Materials : Photorefractive materials
(210.4810) Optical data storage : Optical storage-recording materials
(300.1030) Spectroscopy : Absorption
(300.6440) Spectroscopy : Spectroscopy, optogalvanic

U. van Stevendaal, K. Buse, H. Malz, and E. Krätzig, "Persistent light-induced absorption in oxidized iron-doped barium titanate crystals," Opt. Lett. 24, 908-910 (1999)

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