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.
机构:
Kaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania
Kaunas Univ Technol, Dept Phys, Studentu Str 50, LT-51368 Kaunas, LithuaniaKaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania
Tamuleviciene, Asta
Vasiliauskas, Andrius
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机构:
Kaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, LithuaniaKaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania
Vasiliauskas, Andrius
Ulcinas, Orestas
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机构:
Kaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, LithuaniaKaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania
Ulcinas, Orestas
Gulbinas, Vidmantas
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机构:
Ctr Phys Sci & Technol, Savanoriu Ave 231, LT-02300 Vilnius, LithuaniaKaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania
Gulbinas, Vidmantas
Tamulevicius, Sigitas
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机构:
Kaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania
Kaunas Univ Technol, Dept Phys, Studentu Str 50, LT-51368 Kaunas, LithuaniaKaunas Univ Technol, Inst Mat Sci, K Barsausko St 59, LT-51423 Kaunas, Lithuania