FLUORESCENCE-EXCITATION AND HOLE-BURNING SPECTROSCOPY OF HEAVY-DOSE NEUTRON-IRRADIATED ALPHA-AL2O3

被引：4
|
作者：
BAUER, R
BOGNER, U
MAIER, M
机构：
[1] Naturwissenschaftliche Fakultät II-Physik, Universität Regensburg, Regensburg
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 1995年 / 60卷 / 06期
关键词：
D O I：
10.1007/BF01080928
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on persistent spectral hole-burning and fluorescence-excitation spectroscopy in heavy-dose (3 x 10(20) n/cm(2)) neutron-irradiated and annealed sapphire using a Ti:Sapphire ring laser in single-frequency and broad-band operation. The optimum conditions for hole burning were obtained after annealing the crystals to 400 degrees C. Holes have been detected in the near-infrared spectral range between 745 and 795 nm. At 1.5 K, the narrowest hole widths were approximately 2 GHz, so that about 10(4) holes can be burnt in this spectral region. Besides the storage density in the wavelength dimension, the coefficient describing the electric-field-induced filling of a spectral hole also rises by more than one order of magnitude as compared to crystals with low neutron-irradiation dose.
引用
收藏
页码：507 / 512
页数：6
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