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Conferences > CLEO > 2010 > CThU > CThU3

Terahertz time domain spectroscopy of phonondepopulation based quantum cascade lasers

S. S. Dhillon, N. Jukam, D. Oustinov, J. Madeo, R. Colombelli, P. Dean, M. Salih, S. P. Khanna, Edmund Linfield, A. G. Davies, and J. Tignon

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Abstract

A 3.1THz phonon depopulation-based quantum-cascade-laser is investigated using terahertz time domain spectroscopy. A gain of 25cm-1 and absorption features due to the lower laser level being populated from a parasitic electronic channel are highlighted.

© 2010 Optical Society of America

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