| Issue |
EPL
Volume 146, Number 3, May 2024
|
|
|---|---|---|
| Article Number | 30001 | |
| Number of page(s) | 7 | |
| Section | General physics | |
| DOI | https://doi.org/10.1209/0295-5075/ad3e27 | |
| Published online | 03 May 2024 | |
Photoacoustic effect from an oscillating source in a one-dimensional resonator
1 Department of Chemistry, Brown University - Providence, RI, 02912, USA
2 School of Engineering, Brown University - Providence, RI, 02912, USA
Received: 22 January 2024
Accepted: 12 April 2024
Although the photoacoustic effect is most commonly generated by pulsed or amplitude modulated continuous optical sources, it is possible to generate acoustic waves by moving a constant amplitude, continuous light beam. If the light beam moves at the speed of sound, an amplification effect takes place which can be used in trace gas detection. Here, the properties of the photoacoustic effect are investigated for a continuous optical beam moving in a one-dimensional resonator. The solution shows the additive effects of sweeping the optical beam the length of the cell and back.
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