Decoherence mechanisms of Landau level THz excitations in two dimensional electron gases
METADATA ONLY
Loading...
Author / Producer
Date
2013-12-04
Publication Type
Conference Paper
ETH Bibliography
yes
Citations
Altmetric
METADATA ONLY
Data
Rights / License
Abstract
We report coherent THz transmission measurements on different two dimensional electron gases (2DEGs) in magnetic field. The investigated 2DEGs form in GaAs/AlGaAs heterostructures. A short (1 ps) linearly polarized THz pulse is used to excite inter Landau level transitions. The circular polarized radiation emitted by the 2DEG is then measured by electro optic sampling of the linear component orthogonal to the pump pulse polarization [1]. Here we present measurements on two high mobility samples with μ = 5×106cm2/Vs and μ = 16×106cm2/Vs respectively. The decay times of the emitted radiation are 5.5 ps and 9 ps respectively at 2 K. © 2013 AIP Publishing LLC.
Permanent link
Publication status
published
External links
Book title
The Physics of Semiconductors: Proceedings of the 31st International Conference on the Physics of Semiconductors (ICPS) 2012
Journal / series
Volume
1566 (1)
Pages / Article No.
486 - 487
Publisher
American Institute of Physics
Event
31st International Conference on the Physics of Semiconductors (ICPS 2012)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Cyclotron resonance; THz time domain spectroscopy
Organisational unit
03759 - Faist, Jérôme / Faist, Jérôme