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

Autor(en): Imbrock, J
Kip, D
Kratzig, E
Stichwörter: Optics
Erscheinungsdatum: 1999
Herausgeber: OPTICAL SOC AMER
Journal: OPTICS LETTERS
Volumen: 24
Ausgabe: 18
Startseite: 1302
Seitenende: 1304
Zusammenfassung: 
Holograms have been recorded in congruent LiTaO3:Fe with continuous-wave laser light; by use of a two-step process. Blue gating light (lambda = 488 nm) sensitizes the crystals for holographic recording with red light (lambda = 660 run) of a diode laser. Refractive-index changes of as much as 1.0 x 10(-5) are achieved for intensities of the rea light of 1 W/cm(2). 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. (C) 1999 Optical Society of America. OCIS codes: 210.2860, 210.4810, 160.5320, 090.2900.
ISSN: 01469592
DOI: 10.1364/OL.24.001302

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