Dresden 2006 – wissenschaftliches Programm
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HL: Halbleiterphysik
HL 2: Symposium THz-quantum cascade lasers
HL 2.3: Fachvortrag
Montag, 27. März 2006, 11:15–11:45, HSZ 01
Progress in single frequency and long wavelength quantum cascade lasers — •Jerome Faist1, G. Scalari1, L. Sirigu1, L. Ajili1, C. Walther1, M. Giovannini1, A. Dunbar2, and R. Houdre2 — 1University of Neuchâtel, Switzerland — 2EPFL Lausanne, Switzerland
The realization of terahertz QC lasers has attracted much attention because of its potential applications in imaging and spectroscopy. Spatial and spectral control of the mode profile are therefore of paramount importance. Single mode distributed feedback, as well as devices with photonic crystal mirrors will be demonstrated. Electrically switchable, multi-color emission based on magnetic confinement with a record low frequency of 1.39 THz will also be discussed. Finally, results with InP- based terahertz quantum cascade will be described.