Transient optical absorption of excited F-centres in BeO

被引：0

作者：

Gorbunov, SV ^{[1
]}

Yakovlev, VY

机构：

[1] Ural State Tech Univ, Ekaterinburg 620002, Russia

[2] Tomsk Polytech Univ, Tomsk 634034, Russia

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2002年 / 157卷 / 6-12期

关键词：

F-centres; BeO; optical absorption;

D O I：

10.1080/10420150215776

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Time-resolved spectra, decay kinetics and polarization of the transient optical absorption induced by irradiation of additively colored BeO crystals with electron pulses have been studied. It has been established that the two bands at 3.8 and 4.3 eV of the transient optical absorption are due to the transitions between triplet and singlet excited states of F -centres in BeO. The polarization of excited F -centres absorption is discussed on the basis of analysis of the splitting of singlet and triplet states in crystalline field of the C-3v symmetry.

引用

页码：655 / 658

页数：4