Two-photon excitation and luminescence of confined excitons in CuCl nanocrystals

被引：10
|
作者：
Edamatsu, K
Hisakawa, K
Itoh, T
机构：
[1] Department of Applied Physics, Tohoku University
来源：
JOURNAL OF LUMINESCENCE | 1997年 / 72-4卷
关键词：
CuCl; exciton; nanocrystal; quantum dot; two-photon absorption;
D O I：
10.1016/S0022-2313(96)00216-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigated two-photon excitation and subsequent emission due to confined excitons of CuCl nanocrystals embedded in NaCl matrices. The resonant emission spectra indicate the existence of 'two-photon resonant luminescence' and 'second-harmonic scattering'. The excitation spectra exhibit sharp increase which may be assigned to the transitions into higher Coulombic states (nP) of the confined excitons.
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页码：329 / 330
页数：2
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