The role of buffer gases in optoacoustic spectroscopy
- 1 June 1978
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 32 (11) , 736-738
- https://doi.org/10.1063/1.89904
Abstract
The dependence of an acoustically resonant optoacoustic signal on the molecular weight and thermodynamic and transport properpties of the buffer gas is reported. Our results show that careful selection of such gases can significantly increase the sensitivity and flexibility of optoacoustic spectroscopy. We also demonstrate that such thermodynamic quantities as γ (≡Cp/Cv) and sound velocity can now be measured readily and accurately. Other potential applications are suggested.Keywords
This publication has 2 references indexed in Scilit:
- Detection of weakly absorbing gases using a resonant optoacoustic methodJournal of Applied Physics, 1976
- Intermolecular forces in quasi-spherical moleculesTransactions of the Faraday Society, 1957