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

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.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1306748
Report Number(s):
PNNL-SA-116858
Journal ID: ISSN 1094-4087; DN2001000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Optics Express; Journal Volume: 24; Journal Issue: 16
Publisher:
Optical Society of America (OSA)
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
laser ablation (LA); Laser-produced plasma, plasma diagnostics, Filamentation