Effect of external electric field on R line absorption spectra in LiNbO3:Cr3+ crystals |
| |
| Authors: | A P Skvortsov V A Trepakov L Jastrabik |
| |
| Institution: | (1) A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia;(2) Institute of Physics, Academy of Sciences of the Czech Republic, 18040 Prague 8, Czech Republic |
| |
| Abstract: | 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 C
3 axis of the crystal and indicate that the chromium centers in LiNbO3 have C
3 symmetry.
Fiz. Tverd. Tela (St. Petersburg) 39, 2053–2056 (November 1997) |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
