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我们利用光致发光(PL)和激发光谱(PLE)技术研究了GaAs量子阱的光谱性质,在GaAs量子阱的光致发光中观察到上转换发光,首次提出GaAs量子阱结构可能实现激光制冷,探索了GaAs量子阱结构的发光机理。

The spectral properties in GaAs—Ga0.65Al0.35As multi-quantum well (MQW) structures have been developed by using photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopy.The up-conversion of luminescence in GaAs—Ga0.65Al0.35As multi-quantum wells is observed.We put forward the possibility of laser cooling in semiconductor GaAs MQW for the first time.The mechanism of luminescence on the spectrum in GaAs MQW is researched.

参考文献

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[5] Gosnell T R .Laser Cooling of Solid by 65K Starting from Room Temperature[J].Optics Letters,1999,24:1041.
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