Terahertz magnetoconductivity of excitons and electrons in quantum cascade structures

We examined the quasiparticles formed by the photoexcitation of GaAsAlGaAs terahertz quantum cascade structures using terahertz time-domain spectroscopy. At low temperature and excitation density the measured conductivity was excitonic, with a 1s-2p transition energy indicative of three-dimensional...

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Bibliographic Details
Main Authors: Lloyd-Hughes, J, Beere, H, Ritchie, D, Johnston, M
Format: Journal article
Language:English
Published: 2008