Article ID Journal Published Year Pages File Type
1784395 Infrared Physics & Technology 2013 6 Pages PDF
Abstract

•We report the implementation of a commercial EC-QCL in a photoacoustic spectrometer.•This spectrometer enables measurements at 10.5 μm on spectral range up to 60 cm−1.•The Mode-Hop Free tuning enables to detect small molecules such as carbon dioxide.•The wide tuning range permits the detection of complex molecules such as butane.

We report the implementation of a commercial external cavity-quantum cascade laser emitting at 10.5 μm in a photoacoustic spectrometer. This spectrometer enables measurements on broad spectral range up to 60 cm−1 which means that spectra of complex molecules can be recorded as well as a whole absorption band of a small molecule. The wide tuning range of the source of this photoacoustic spectrometer demonstrates the possibility to detect small and complex molecules such as carbon dioxide and butane.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Atomic and Molecular Physics, and Optics
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