Title :
Coherent terahertz cyclotron oscillations in a two-dimensional electron gas
Author :
Wang, X. ; Srivastava, R. ; Barkan, A. ; Mittleman, D.M. ; Kono, J. ; Reno, J.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX
Abstract :
Time-domain THz spectroscopy of a GaAs 2D electron gas in magnetic fields reveals long-lived (~50 ps) coherent oscillations. From the field-dependent oscillation frequency, we attribute these oscillations to the free induction decay of cyclotron resonance.
Keywords :
III-V semiconductors; cyclotron resonance; gallium arsenide; gallium compounds; magnetic fields; oscillations; submillimetre wave spectroscopy; two-dimensional electron gas; 2D electron gas; GaAs; coherent terahertz cyclotron oscillations; cyclotron resonance; field-dependent oscillation frequency; free induction decay; magnetic fields; time-domain THz spectroscopy; Cyclotrons; Electrons; (300.6500) Spectroscopy, time-resolved; (320.7130) Ultrafast processes in condensed matter;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4629010
