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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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Quantum cascade semiconductor infrared and far-infrared lasers : from trace gas sensing to non-linear optics

Duxbury, G and Langford, N and McCulloch, M T and Wright, S (2005) Quantum cascade semiconductor infrared and far-infrared lasers : from trace gas sensing to non-linear optics. Chemical Society Reviews, 34 (11). pp. 921-934. ISSN 0306-0012

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Abstract

The Quantum cascade (QC) laser is an entirely new type of semiconductor device in which the laser wavelength depends on the band-gap engineering. It can be made to operate over a much larger range than lead salt lasers, covering significant parts of both the infrared and submillimetre regions, and with higher output power. In this tutorial review we survey some of the applications of these new lasers, which range from trace gas detection for atmospheric or medical purposes to sub-Doppler and time dependent non-linear spectroscopy.