Lifetimes of thermally fixed holograms in LiNbO3:Fe crystals

被引：24

作者：

Arizmendi, L ^{[1
]}

de Miguel-Sanz, EM ^{[1
]}

Carrascosa, M ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Mat, E-28049 Madrid, Spain

来源：

OPTICS LETTERS | 1998年 / 23卷 / 12期

关键词：

D O I：

10.1364/OL.23.000960

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The thermal erasure decay at different temperatures of holographic gratings thermally fixed in iron-doped lithium niobate has been exhaustively studied. An activation energy of 0.94 eV was found to be independent of the grating fringe spacing. At a given temperature the decay time is strongly dependent on the grating spacing. This dependence is well fitted to a square fringe spacing law, as predicted theoretically. From the experimental data the room-temperature hologram lifetime under illumination is extrapolated, giving as a result tau(years) = (5.2 +/- 0.2) Lambda(2), with the grating spacing A in micrometers. (C) 1998 Optical Society of America.

引用

页码：960 / 962

页数：3

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