Consequences of Femtosecond Laser Filament Generation Conditions in Standoff Laser Induced Breakdown Spectroscopy

Journal Article · Mon Aug 08 00:00:00 EDT 2016 · Optics Express

DOI:https://doi.org/10.1364/OE.24.017941· OSTI ID:1306748

Harilal, Sivanandan S.; Yeak, J.; Brumfield, Brian E.; Phillips, Mark C.

We investigate the role of femtosecond laser focusing conditions on ablation properties and its implications on analytical merits and standoff detection applications. Femtosecond laser pulses can be used for ablation either by tightly focusing or by using filaments generated during its propagation. We evaluated the persistence of atomic, and molecular emission features as well as time evolution of the fundamental properties (temperature and density) of ablation plumes generated using different methods.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1306748
• Report Number(s): PNNL-SA-116858; DN2001000
• Journal Information: Optics Express, Vol. 24, Issue 16; ISSN 1094-4087
• Publisher: Optical Society of America (OSA)
• Country of Publication: United States
• Language: English

Related Subjects

laser ablation (LA)
Laser-produced plasma
plasma diagnostics
Filamentation