Abstract
Laser photo-acoustic spectroscopy (LPAS) is a highly sensitive and selective method for trace gas analysis. One of the most advanced LPAS techniques is cantilever-enhanced photo-acoustic spectroscopy (CEPAS), which can reach down to low-ppt and sub-ppt level trace gas detection sensitivities with high power lasers [1,2]. The selection of wavelengths and tunability of high power narrow linewidth lasers is, however, limited. They are also rarely suitable for field deployable analysers, which would require a small and robust form factor. An alternative approach, potentially overcoming these weaknesses, is to build up the optical power of a standard distributed feedback diode laser (DFB) or a quantum cascade laser in an external optical cavity [3,4]. © 2019 IEEE.
| Original language | English |
|---|---|
| Title of host publication | 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) |
| Number of pages | 1 |
| Place of Publication | Piscataway, NJ |
| Publisher | IEEE |
| Publication date | 2019 |
| ISBN (Electronic) | 978-1-7281-0469-0 |
| DOIs | |
| Publication status | Published - 2019 |
| MoE publication type | A4 Article in conference proceedings |
| Event | The 2019 Conference on Lasers & Electro-Optics / Europe and the European Quantum Electronics Conference (CLEO®/Europe-EQEC) - München, Germany Duration: 23 Jun 2019 → 27 Jun 2019 |
Fields of Science
- 116 Chemical sciences