Two-step two-color recording in a photorefractive praseodymium-doped La3Ga5SiO14 crystal

Autor(en): Nikolajsen, T
Johansen, PM
Yue, X
Kip, D
Kratzig, E
Stichwörter: LASERS; LINBO3; NIOBATE; Physics; Physics, Applied; STORAGE
Erscheinungsdatum: 1999
Herausgeber: AMER INST PHYSICS
Journal: APPLIED PHYSICS LETTERS
Volumen: 74
Ausgabe: 26
Startseite: 4037
Seitenende: 4039
Zusammenfassung: 
Two-step two-color recording is demonstrated in a photorefractive La3Ga5SiO14:Pr3+ crystal using cw laser radiation. The 488 nm line from an Ar-ion laser is used for gating and gratings are written using a Ti:sapphire laser operating in the range from 788 to 840 nm. The dependence of holographic recording on grating and writing intensity is investigated. A saturation of the sensitivity is found for 2 W/cm(2) of grating intensity. A threshold photon energy of 1.53 eV for the second excitation step is observed. (C) 1999 American Institute of Physics. [S0003-6951(99)01726-X].
ISSN: 00036951
DOI: 10.1063/1.123253

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