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

机译：多量子阱中子带间光学二次谐波的产生：辐射耦合效应

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摘要

An analysis of intersubband optical second-harmonic generation (SHG) in multiple quantum wells (QW's) is presented, in which special attention has been paid to radiative coupling effects. Starting from the Maxwell-Lorentz equations, the field at the second-harmonic frequency in the QW system is determined. Following the same framework, the field at the fundamental frequency is also obtained. In a reflection geometry, the SH conversion efficiency is derived for a p-polarized incident field. Detailed numerical calculations for different numbers of QW's, angles of incidence, as well as barrier thicknesses show that the SHG conversion efficiency can be significantly modified due to radiative coupling among wells.
机译：本文对多量子阱（QW's）中的子带间次谐波产生（SHG）进行了分析，其中特别关注了辐射耦合效应。从Maxwell-Lorentz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。在反射几何中，SH转换效率是针对p偏振入射场得出的。对于不同数量的QW，入射角以及势垒厚度的详细数值计算表明，由于孔之间的辐射耦合，SHG转换效率可以显着提高。

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