TY - JOUR T1 - Temperature of quasi-two-dimensional electron gases under steady-state terahertz drive JF - Applied Physics Letters Y1 - 1996 A1 - Asmar, N. G. A1 - Cerne, J. A1 - Markelz, A. G. A1 - Gwinn, E. G. A1 - Sherwin, M. S. A1 - Campman, K. L. A1 - Gossard, A. C. KW - hot-electrons KW - Physics AB -

We use photoluminescence to study the time-average energy distribution of electrons in the presence of strong steady-state drive at terahertz (THz) frequencies, in a modulation-doped 125 Angstrom AlGaAs/GaAs square well that is held at low lattice temperature TL. We find that the energy distribution can be characterized by an effective electron temperature, T-e(>T-L), that agrees well with values estimated from the THz-illuminated, dc conductivity. This agreement indicates that under strong THz drive, LO phonon scattering dominates both energy and momentum relaxation; that the carrier distribution maintains a heated, thermal form; and that phonon drift effects are negligible. (C) 1996 American Institute of Physics.

VL - 68 SN - 0003-6951 N1 - ISI Document Delivery No.: TT663
Times Cited: 59
Cited Reference Count: 12
Cited References:
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Asmar, NG Cerne, J Markelz, AG Gwinn, EG Sherwin, MS Campman, KL Gossard, AC
Sherwin, Mark S/Q-4762-2017
Sherwin, Mark S/0000-0002-3869-1893; Markelz, Andrea/0000-0003-0443-4319
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Amer inst physics
Woodbury JO - Appl. Phys. Lett.Appl. Phys. Lett. ER -