Dual-Wavelength Dfb Quantum Cascade Lasers For No And No2 Trace Gas Analysis

Filippos Kapsalidis,Mehran Shahmohammadi,Martin J. Suess,Morten Hundt,Johanna M. Wolf,Bela Tuzson,Emilio Gini,Mattias Beck,Lukas Emmenegger,Jerome Faist

european quantum electronics conference（2017）

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摘要

Quantum cascade lasers (QCLs) are powerful semiconductor light sources, based on intersubband transitions, which can be tailored to operate in the mid-infrared (MIR) region of the electromagnetic spectrum [1]. This region is of particular interest for applying various gas absorption spectroscopy schemes, as many of the characteristic transitions of several gas molecules occur at energies that are situated in this region [2].

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