Linear and nonlinear absorption, SHG and photobleaching behaviors of Dy doped GaSe single crystal

被引：14
作者：
Ertap, Huseyin [1 ]
Yuksek, Mustafa [2 ]
Karatay, Ahmet [3 ]
Elmali, Ayhan [3 ]
Karabulut, Mevlut [4 ]
机构：
[1] Kafkas Univ, Fac Sci & Letters, Dept Phys, TR-36100 Kars, Turkey
[2] Kafkas Univ, Dept Elect & Electron Engn, Fac Engn, TR-36100 Kars, Turkey
[3] Ankara Univ, Fac Engn, Dept Engn Phys, TR-06100 Ankara, Turkey
[4] Gebze Tech Univ, Dept Phys, TR-41400 Gebze, Turkey
来源：
CHINESE JOURNAL OF PHYSICS | 2019年 / 59卷
关键词：
SHG; Linear and nonlinear absorption; Electron mobility; Photobleaching; GaSe; Dysprosium; 2-PHOTON ABSORPTION; OPTICAL-PROPERTIES; GALLIUM SELENIDE; ELECTRICAL-PROPERTIES; CARRIER DYNAMICS; ANISOTROPY; GROWTH; PHOTOLUMINESCENCE; PHOTOCONDUCTIVITY; DISPERSION;
D O I：
10.1016/j.cjph.2019.03.014
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The linear absorption, nonlinear absorption (NA), second harmonic generation (SHG) and carrier mobilities of undoped and 0.1 at% Dy doped GaSe single crystals grown by modified Bridgman method have been studied by UV-vis, open aperture Z-scan, SHG and transmission ultrafast pump probe spectroscopy experiments. Both linear absorption and SHG measurements clearly showed that the doping of GaSe crystal with Dy3+ leads to a shift in the linear absorption edge. The mechanisms contributing to the NA behavior were explained and discussed. The photobleaching behaviors of the crystals were investigated by delaying of the probe signal in transmission pump-probe spectroscopy experiments.
引用
收藏
页码：465 / 472
页数：8
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