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Optics Letters

Optics Letters


  • Vol. 24, Iss. 18 — Sep. 15, 1999
  • pp: 1302–1304

Nonvolatile holographic storage in iron-doped lithium tantalate with continuous-wave laser light

J. Imbrock, D. Kip, and E. Krätzig  »View Author Affiliations

Optics Letters, Vol. 24, Issue 18, pp. 1302-1304 (1999)

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Holograms have been recorded in congruent LiTaO3:Fe with continuous-wave laser light by use of a two-step process. Blue gating light (λ=488 nm) sensitizes the crystals for holographic recording with red light (λ=660 nm) of a diode laser. Refractive-index changes of as much as 1.0×10-5 are achieved for intensities of the red light of 1 W/cm2 . The saturation values are proportional to the intensity of the writing light. Nondestructive readout with red light is possible, and the holograms remain erasable for blue light.

© 1999 Optical Society of America

OCIS Codes
(090.2900) Holography : Optical storage materials
(160.5320) Materials : Photorefractive materials
(210.2860) Optical data storage : Holographic and volume memories
(210.4810) Optical data storage : Optical storage-recording materials

J. Imbrock, D. Kip, and E. Krätzig, "Nonvolatile holographic storage in iron-doped lithium tantalate with continuous-wave laser light," Opt. Lett. 24, 1302-1304 (1999)

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