We present intersubband absorption in the conduction band of compressively strained germanium quantum wells bounded by Ge-rich SiGe barriers. The measured absorption energies are in the 5-12 THz range depending on the well width. These results may be relevant for the design of SiGe-based THz Quantum Cascade emitters.

Terahertz Intersubband Transitions in the Conduction Band of Ge/SiGe Multi Quantum Wells

VIRGILIO, MICHELE;GROSSO, GIUSEPPE;
2010

Abstract

We present intersubband absorption in the conduction band of compressively strained germanium quantum wells bounded by Ge-rich SiGe barriers. The measured absorption energies are in the 5-12 THz range depending on the well width. These results may be relevant for the design of SiGe-based THz Quantum Cascade emitters.
9781424466573
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/229968
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