High-Resolution Spectroscopy of Laser Ablation Plumes Using Laser-Induced Fluorescence

Journal Article · Mon Feb 06 00:00:00 EST 2017 · Optics Express

DOI:https://doi.org/10.1364/OE.25.002312· OSTI ID:1344033

Harilal, Sivanandan S.; LaHaye, Nicole L.; Phillips, Mark C.

We used a CW laser as a narrow-band (~50kHz) tunable LIF excitation source to probe absorption from selected atomic transitions (Al, U etc. ) in a ns laser ablation plume. A comparison of fluorescence signal with respect to emission spectroscopy show significant increase in the magnitude and persistence from selected Al and U transitions in a LIBS plume. The high spectral resolution provided by the LIF measurement allows peaks to be easily separated even if they overlap in the emission spectra.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1344033
• Report Number(s): PNNL-SA-119894; DN2001000
• Journal Information: Optics Express, Vol. 25, Issue 3; ISSN 1094-4087
• Publisher: Optical Society of America (OSA)
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
laser ablation (LA)
Laser-produced plasma
plasma diagnostics