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Conferences > CLEO_Europe > 2017 > CH_1 > CH_1_4
  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper CH_1_4

A Novel Mid-infrared Gas Sensor Based On Mutually Coupled Quantum Cascade Lasers

Andreas Herdt, Adonis Bogris, Dimitris Syvridis, and Wolfgang Elsäßer

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Abstract

Since many molecules possess their specific fingerprint in the mid-infrared (MIR) wavelength regime, MIR absorption spectroscopy is a powerful technique to determine the composition and species concentration of an unknown substance [1]. Due to the broad MIR-wavelength operation regime from 2.63 µm up to 250 µm, the high quantum efficiency and the customizable output wavelength, Quantum Cascade Lasers (QCLs) introduced in 1994 [2], are the most appropriate choice for this wavelength range.

© 2017 IEEE

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