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首页> 外文期刊>IEEE Journal of Quantum Electronics >Intersubband optical second-harmonic generation in multiple quantumwells: radiative coupling effects
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Intersubband optical second-harmonic generation in multiple quantumwells: radiative coupling effects

机译:多量子阱中子带间光次谐波的产生:辐射耦合效应

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摘要

An analysis of intersubband optical second-harmonic generationn(SHG) in multiple quantum wells (QW's) is presented, in which specialnattention has been paid to radiative coupling effects. Starting from thenMaxwell-Lorentz equations, the field at the second-harmonic frequency innthe QW system is determined. Following the same framework, the field atnthe fundamental frequency is also obtained. In a reflection geometry,nthe SH conversion efficiency is derived for a p-polarized incidentnfield. Detailed numerical calculations for different numbers of QW's,nangles of incidence, as well as barrier thicknesses show that the SHGnconversion efficiency can be significantly modified due to radiativencoupling among wells
机译:对多量子阱(QW's)中的子带间光次谐波产生n(SHG)进行了分析,其中特别注意了辐射耦合效应。从随后的麦克斯韦-洛伦兹方程开始,确定QW系统中第二谐波频率的磁场。按照相同的框架,还可以获得基频处的磁场。在反射几何结构中,SH转换效率是针对p偏振入射场得出的。对不同数量的QW,入射角以及势垒厚度进行的详细数值计算表明,由于孔之间的辐射耦合,SHGn转换效率可以显着提高。

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