Title :
Superradiant decay of coherent cyclotron resonance in ultrahigh-mobility two-dimensional electron gases
Author :
Qi Zhang ; Arikawa, Takashi ; Zudov, Michael A. ; Reno, John L. ; Wei Pan ; Watson, John D. ; Manfra, Michael J. ; Kono, Junichiro
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
We study the coherent dynamics of cyclotron resonance in ultrahigh-mobility two-dimensional electron gases via time-domain terahertz magneto-spectroscopy. We show that superradiant damping is the dominant decoherence mechanism at low temperatures.
Keywords :
cyclotron resonance; superradiance; terahertz wave spectra; time-domain analysis; two-dimensional electron gas; coherent cyclotron resonance; decoherence mechanism; superradiant damping; superradiant decay; time-domain terahertz magnetospectroscopy; ultrahigh-mobility 2D electron gases; Cyclotrons; Damping; Gallium arsenide; HEMTs; MODFETs; Magnetomechanical effects; Time-domain analysis;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
