Effect of external electric field on R line absorption spectra in LiNbO3:Cr3+ crystals

被引：0
作者：
A. P. Skvortsov
V. A. Trepakov
L. Jastrabik
机构：
[1] Russian Academy of Sciences,A. F. Ioffe Physicotechnical Institute
[2] Academy of Sciences of the Czech Republic,Institute of Physics
来源：
Physics of the Solid State | 1997年 / 39卷
关键词：
Spectroscopy; Chromium; Absorption Spectrum; Dipole Moment; Absorption Line;
D O I：
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学科分类号：
摘要：
The effect of an external electric field on the R absorption lines of LiNbO3:Cr3+ crystals has been studied by a high-sensitivity differential technique at 77 K. Linear Stark effect has been observed in a field directed along the trigonal crystal axis. No effect of the field was observed when directed perpendicular to this axis. These characteristics of the Stark effect provide a convincing argument for the electric dipole moments of Cr3+ centers being oriented along the trigonal C3 axis of the crystal and indicate that the chromium centers in LiNbO3 have C3 symmetry.
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页码：1835 / 1837
页数：2
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