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

Nikolajsen, T.; Johansen, P. M.; Yue, X.; Kip, Detlef; Krätzig, E.

doi:10.1063/1.123253

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

Publication date

1999

Document type

Research article

Author

Nikolajsen, T.

Johansen, P. M.

Yue, X.

Kip, Detlef

Krätzig, E.

Organisational unit

Universität Osnabrück

DOI

10.1063/1.123253

URI

https://openhsu.ub.hsu-hh.de/handle/10.24405/14094

Scopus ID

2-s2.0-0037597220

Publisher

American Inst. of Physics

Series or journal

Applied Physics Letters

ISSN

0003-6951

Periodical volume

74

Periodical issue

26

First page

4037

Last page

4039

Part of the university bibliography

Nein

Language

English

Abstract

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/cm2 of grating intensity. A threshold photon energy of 1.53 eV for the second excitation step is observed. © 1999 American Institute of Physics.

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