TRANSIENT EFFECTS IN PHOTOEXCITED CDS MICROCRYSTALS

被引：5

作者：

BALTRAMIEJUNAS, R

PAKALNIS, S

TAMULAITIS, G

机构：

[1] Institute of Physics, Lithuanian Academy of Sciences, Vilnius, 232600

来源：

JOURNAL OF CRYSTAL GROWTH | 1992年 / 117卷 / 1-4期

关键词：

D O I：

10.1016/0022-0248(92)90826-5

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The time evolution of nonlinear absorption of CdS microcrystals in glass matrix was studied by means of the pump-and-probe technique with 5 ps time resolution. The electron-hole density dependent competition between concurrent band filling, causing the bleaching of the sample, and the darkening effect due to band gap renormalization has been observed in time-resolved experiments, as well as in those where the excitation intensity at a fixed time delay is changed between pumping and probing beams.

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页码：622 / 624

页数：3

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