High Conversion Efficiency Of 2nd-Harmonic Generation In Step Quantum-Wells

Zhenghao Chen,Dafu Cui,Meihua Li,Chao Jiang,Junming Zhou,Guozhen Yang

APPLIED PHYSICS LETTERS（1992）

引用 29|浏览4

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摘要

Second-harmonic generation due to intersubband transitions in GaAs/AlxGa1-xs step quantum well structures has been studied with a tunable TEA CO2 laser. The maximum value of chi(2) (2omega) is found to be approximately 9 X 10(-7) m/V. Using a multipass or "waveguide" structure, a conversion efficiency of more than 3 X 10(-4) has been obtained.

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关键词

harmonic generation,energy conversion,conversion efficiency,carbon dioxide,tunable laser,second harmonic generation,gallium arsenide,quantum well

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