Cool mid-IR Absorption Spectroscopy of cold Molecules

Akshay Nataraj; Akshay Nataraj; Michele Gianella; Béla Tuzson; Gang Li; Volker Ebert; Jérôme Faist; Lukas Emmenegger

doi:10.1364/ES.2022.ETu4H.7

Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES)
Technical Digest Series (Optica Publishing Group, 2022),
paper ETu4H.7
•https://doi.org/10.1364/ES.2022.ETu4H.7

Cool mid-IR Absorption Spectroscopy of cold Molecules

Akshay Nataraj, Michele Gianella, Béla Tuzson, Gang Li, Volker Ebert, Jérôme Faist, and Lukas Emmenegger

Optics and Photonics for Sensing the Environment 2022

Vancouver, British Columbia Canada
11–15 July 2022
ISBN: 978-1-957171-10-4

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Novel Technique for Environmental Sensing II (ETu4H)

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A. Nataraj, M. Gianella, B. Tuzson, G. Li, V. Ebert, J. Faist, and L. Emmenegger, "Cool mid-IR Absorption Spectroscopy of cold Molecules," in Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES), Technical Digest Series (Optica Publishing Group, 2022), paper ETu4H.7.

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Abstract

We present a QCL based absorption spectroscopy setup with a Stirling cooled circular multipass absorption cell at 150 K. We report the first high-precision measurements of clumped ¹²C¹⁸O₂ and ¹²C¹⁷O¹⁸O, and of site-specific propane isotopomers.

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