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Small-volume cavity cell using hollow optical fiber for Raman scattering-based gas detection
- Source :
- Proceedings of SPIE; February 2011, Vol. 7894 Issue: 1 p78940N-78940N-6, 710467p
- Publication Year :
- 2011
-
Abstract
- The highly sensitive Raman cell based on the hollow optical fiber that is suitable for the real-time breath analysis is reported. Hollow optical fiber with inner coating of silver is used as a gas cell and a Stokes light collector. A very small cell whose volume is only 0.4 ml or less enables fast response and real-time measurement of trace gases. To increase the sensitivity the cell is arranged in a cavity which includes of a long-pass filter and a high reflective mirror. The sensitivity of the cavity cell is more than two times higher than that of the cell without cavity.
Details
- Language :
- English
- ISSN :
- 0277786X
- Volume :
- 7894
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Proceedings of SPIE
- Publication Type :
- Periodical
- Accession number :
- ejs24388964
- Full Text :
- https://doi.org/10.1117/12.874828