Terahertz conductivity of magnetoexcitons and electrons in semiconductor nanostructures

Using terahertz time-domain spectroscopy we investigate how quantum, magnetic and electrostatic confinement alters the photoconductivity of nanostructured semiconductors. In 2.0 THz and 2.9THz GaAs/AlGaAs quantum cascade structures under a magnetic field we observe transitions from the 1s to 2p- or...

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Bibliographic Details
Main Authors: Lloyd-Hughes, J, Faist, J, Beere, H, Ritchie, D, Sirbu, L, Tiginyanu, I, Merchant, S, Johnston, M
Format: Conference item
Published: 2009