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

Authors
Nikolajsen, T Johansen, PM Yue, X Kip, D Kratzig, E
Citation
T. Nikolajsen et al., Two-step two-color recording in a photorefractive praseodymium-doped La3Ga5SiO14 crystal, APPL PHYS L, 74(26), 1999, pp. 4037-4039
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
74
Issue
26
Year of publication
1999
Pages
4037 - 4039
Database
ISI
SICI code
0003-6951(19990628)74:26<4037:TTRIAP>2.0.ZU;2-T
Abstract
Two-step two-color recording is demonstrated in a photorefractive La3Ga5SiO 14:Pr3+ crystal using cw laser radiation. The 488 nm line from an Ar-ion la ser is used for gating and gratings are written using a Ti:sapphire laser o perating in the range from 788 to 840 nm. The dependence of holographic rec ording on grating and writing intensity is investigated. A saturation of th e sensitivity is found for 2 W/cm(2) of grating intensity. A threshold phot on energy of 1.53 eV for the second excitation step is observed. (C) 1999 A merican Institute of Physics. [S0003-6951(99)01726-X].