| Issue |
EPJ Web Conf.
Volume 362, 2026
31st International Laser Radar Conference (ILRC 31) Held Together with the 22nd Coherent Laser Radar Conference (CLRC 22)
|
|
|---|---|---|
| Article Number | 09014 | |
| Number of page(s) | 4 | |
| Section | Lidar Measurements of Trace Gases (including Greenhouse Gases and Water Vapour) | |
| DOI | https://doi.org/10.1051/epjconf/202636209014 | |
| Published online | 09 April 2026 | |
https://doi.org/10.1051/epjconf/202636209014
Towards trace gases detection in the UV range by coupling Dual Comb Spectroscopy and Integrated Path Lidar
Universite Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, UMR5306 F-69100 Villeurbanne, France Lead Author e-mail address: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 9 April 2026
Abstract
Detecting reactive traces gases in the atmosphere requires fast acquisition time and in-situ probing without air sampling. Several trace gases present a maximum absorption cross-section in the ultraviolet (UV) range, which call for a spectrally-resolved spectroscopy technique with a fast acquisition rate in this range to detect them. The Dual Comb Spectroscopy (DCS) technique meets these requirements. We present a DCS setup using a homemade bidirectional Ti:Sa laser cavity in the infrared (IR) range and use Second Harmonic Generation (SHG) to extend it to the UV range. We use O2 detection to quantitatively characterize the setup in the IR range and show preliminary UV-DCS interferograms.
© The Authors, published by EDP Sciences, 2026
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