Helda

Helsingin yliopisto

Helsingfors universitet

University of Helsinki
Advanced Search

Broadband photoacoustic spectroscopy of 14CH4 with a high-power mid-infrared optical frequency comb

Show full item record


Download Export to RefWorks SFX Info Share

Permalink

http://hdl.handle.net/10138/312056

Citation

Karhu , J , Tomberg , T , Senna Vieira , F , Genoud , G , Hänninen , V , Vainio , M , Metsälä , M , Hieta , T , Bell , S & Halonen , L 2019 , ' Broadband photoacoustic spectroscopy of 14CH4 with a high-power mid-infrared optical frequency comb ' , Optics Letters , vol. 44 , no. 5 , pp. 1142-1145 . https://doi.org/10.1364/OL.44.001142

Title: Broadband photoacoustic spectroscopy of 14CH4 with a high-power mid-infrared optical frequency comb
Author: Karhu, Juho; Tomberg, Teemu; Senna Vieira, Francisco; Genoud, Guillaume; Hänninen, Vesa; Vainio, Markku; Metsälä, Markus; Hieta, Tuomas; Bell, Steven; Halonen, Lauri
Contributor: University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
Date: 2019-03-01
Language: eng
Number of pages: 4
Belongs to series: Optics Letters
ISSN: 0146-9592
URI: http://hdl.handle.net/10138/312056
Abstract: We report a photoacoustic spectroscopy setup with a high-power mid-infrared frequency comb as the light source. The setup is used in broadband spectroscopy of radiocarbon methane. Owing to the high sensitivity of a cantilever-enhanced photoacoustic cell and the high-power light source, we can reach a detection limit below 100 ppb in a broadband measurement with a sample volume of only a few milliliters. The first infrared spectrum of 14CH4 is reported and given a preliminary assignment. The results lay a foundation for the development of optical detection systems for radiocarbon methane.
Subject: RADIOCARBON DIOXIDE
C-14
116 Chemical sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
AM_OFC_PAS_14CH4.pdf 372.0Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record