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Feasibility of dual comb spectroscopy in the UV range using a free-running, bidirectional ring titanium sapphire laser

Authors :
Feuvrier Abel
Pivard Clément
Morville Jérôme
Rairoux Patrick
Galtier Sandrine
Source :
EPJ Web of Conferences, Vol 287, p 07019 (2023)
Publication Year :
2023
Publisher :
EDP Sciences, 2023.

Abstract

We show that our developed free-running, bidirectional ring Ti:Sa laser cavity meets the requirements for Dual Comb Spectroscopy in the UV range (UV-DCS). Two counter-propagative frequency combs with slightly different repetition rate are generated in such a cavity and we show quantitatively that this repetition rate difference can be explained by the self-steepening effect. Molecular absorption lines of the O2 A-band centered around 760~nm are measured with a 1,5 GHz spectral resolution, demonstrating that the mutual coherence of the two combs allows GHz-resolution DCS measurements. Moreover, we demonstrate that the generated output peak power allows for efficient second harmonic generation (SHG), in the scope of developing laboratory and open-path UV-DCS experiments.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
287
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.645d2fd54b34afcab72cc06ad4ebb2a
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/202328707019