THz time-domain studies on metal-metal THz quantum cascade lasers are presented. A coupled cavity method allows to probe the laser via modulation of coherent broadband THz pulses. Observed laser gain and loss processes are discussed.
© 2011 OSA
M. Martl, J. Darmo, C. Deutsch, M. Brandstetter, A. Benz, A. M. Andrews, P. Klang, W. Schrenk, G. Strasser, and K. Unterrainer, "Metal-Metal THz Quantum Cascade Laser Gain and Loss Investigated by THz Time Domain Spectroscopy," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper CThE2.
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