Plasma temperature clamping in filamentation laser induced breakdown spectroscopy
Abstract
Ultrafast laser filament induced breakdown spectroscopy is a very promising method for remote material detection. We present characteristics of plasmas generated in a metal target by laser filaments in air. Our measurements show that the temperature of the ablation plasma is clamped along the filamentation channel due to intensity clamping in a filament. Nevertheless, significant changes in radiation intensity are noticeable, and this is essentially due to variation in the number density of emitting atoms. The present results also partly explains the reason for the occurrence of atomic plume during fs LIBS in air compared to long-pulse ns LIBS.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1267594
- Report Number(s):
- PNNL-SA-112002
Journal ID: ISSN 1094-4087; DN2001000
- DOE Contract Number:
- AC05-76RL01830
- Resource Type:
- Journal Article
- Journal Name:
- Optics Express
- Additional Journal Information:
- Journal Volume: 23; Journal Issue: 21; Journal ID: ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- Laser ablation; Molecular formation; AlO; Emission spectroscopy; 2D fast imaging
Citation Formats
Harilal, Sivanandan S., Yeak, J., and Phillips, Mark C. Plasma temperature clamping in filamentation laser induced breakdown spectroscopy. United States: N. p., 2015.
Web. doi:10.1364/OE.23.027113.
Harilal, Sivanandan S., Yeak, J., & Phillips, Mark C. Plasma temperature clamping in filamentation laser induced breakdown spectroscopy. United States. https://doi.org/10.1364/OE.23.027113
Harilal, Sivanandan S., Yeak, J., and Phillips, Mark C. 2015.
"Plasma temperature clamping in filamentation laser induced breakdown spectroscopy". United States. https://doi.org/10.1364/OE.23.027113.
@article{osti_1267594,
title = {Plasma temperature clamping in filamentation laser induced breakdown spectroscopy},
author = {Harilal, Sivanandan S. and Yeak, J. and Phillips, Mark C.},
abstractNote = {Ultrafast laser filament induced breakdown spectroscopy is a very promising method for remote material detection. We present characteristics of plasmas generated in a metal target by laser filaments in air. Our measurements show that the temperature of the ablation plasma is clamped along the filamentation channel due to intensity clamping in a filament. Nevertheless, significant changes in radiation intensity are noticeable, and this is essentially due to variation in the number density of emitting atoms. The present results also partly explains the reason for the occurrence of atomic plume during fs LIBS in air compared to long-pulse ns LIBS.},
doi = {10.1364/OE.23.027113},
url = {https://www.osti.gov/biblio/1267594},
journal = {Optics Express},
issn = {1094-4087},
number = 21,
volume = 23,
place = {United States},
year = {Mon Oct 19 00:00:00 EDT 2015},
month = {Mon Oct 19 00:00:00 EDT 2015}
}
Other availability
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.