IEEE - Institute of Electrical and Electronics Engineers, Inc. - Gain studies of phonon-depopulation based terahertz quantum cascade lasers using terahertz time domain spectroscopy

2010 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010)

Author(s): Dhillon, S. ; Jukam, N. ; Oustinov, D. ; Madeo, J. ; Rungsawang, R. ; Colombelli, R. ; Dean, P. ; Salih, M. ; Khanna, S.P. ; Linfield, E.H. ; Davies, A.G. ; Tignon, J.
Publisher: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 September 2010
Conference Location: Rome, Italy, Italy
Conference Date: 5 September 2010
Page(s): 1
ISBN (CD): 978-1-4244-6656-6
ISBN (Electronic): 978-1-4244-6657-3
ISBN (Paper): 978-1-4244-6655-9
DOI: 10.1109/ICIMW.2010.5612816
Regular:

Gain and losses in a LO-phonon THz QCL are studied using TDS. At threshold the gain clamps at 25cm−1 and the gain FWHM is 0.6THz. At low biases, absorption features are observed... View More

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