Silicon germanium quantum cascade heterostructures for far-infrared emission

Robert W. Kelsall; Zoran Ikonic; Paul Harrison; Stephen A. Lynch; Robert Bates; Douglas J. Paul; David J. Norris; San Lin Liew; Anthony G. Cullis; David J. Robbins; Pavel Murzyn; Carl R. Pidgeon; Donald D. Arnone; Richard A. Soref

doi:10.1117/12.463846

27 March 2002 Silicon germanium quantum cascade heterostructures for far-infrared emission

Robert W. Kelsall, Zoran Ikonic, Paul Harrison, Stephen A. Lynch, Robert Bates, Douglas J. Paul, David J. Norris, San Lin Liew, Anthony G. Cullis, David J. Robbins, Pavel Murzyn, Carl R. Pidgeon, Donald D. Arnone, Richard A. Soref

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Proceedings Volume 4654, Silicon-based and Hybrid Optoelectronics IV; (2002) https://doi.org/10.1117/12.463846
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

Terahertz (far-infrared) intersubband electroluminescence is reported in p-type Si/SiGe quantum wells and quantum cascade structures. Surface-normal emission (without the aid of a surface grating) from light hole - heavy hole intersubband transitions has been observed for the first time in a quantum cascade device. Edge-emission measurements have also been performed, which show emission from both heavy hole - heavy hole and light hole - heavy hole transitions, and have allowed demonstration of the polarisation dependence of the emitted power, according to the selection rules for the intersubband interactions. The electroluminescence is visible up to temperatures of ~150K, in the multiple quantum well structures, and >=77K in the quantum cascade structure.

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Robert W. Kelsall, Zoran Ikonic, Paul Harrison, Stephen A. Lynch, Robert Bates, Douglas J. Paul, David J. Norris, San Lin Liew, Anthony G. Cullis, David J. Robbins, Pavel Murzyn, Carl R. Pidgeon, Donald D. Arnone, and Richard A. Soref "Silicon germanium quantum cascade heterostructures for far-infrared emission", Proc. SPIE 4654, Silicon-based and Hybrid Optoelectronics IV, (27 March 2002); https://doi.org/10.1117/12.463846

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