Title

Molecular Signal As A Signature For Detection Of Energetic Materials In Filament-Induced Breakdown Spectroscopy

Keywords

Femtosecond; Filamentation; Laser ablation; Laser induced breakdown spectroscopy; LIBS; Plasma chemistry

Abstract

Laser Induced Breakdown Spectroscopy (LIBS) by self-channeled femtosecond pulses is characterized for detection of energetic materials. Different polymers are spin coated on silicon wafers to provide a thin organic layer with controllable thickness ranging from 500 nm to 1 μm. Spectral analysis of atomic and molecular carbon emission shows CN molecular signal from samples that do not contain nitrogen. This can be explained by possible molecular recombination between native atomic carbon and atmospheric nitrogen. As a consequence, caution must be exercised when using spectral signatures based on CN emission for explosive detection by filament-induced LIBS. ©2009 SPIE.

Publication Date

9-7-2009

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

7304

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.820522

Socpus ID

69549086785 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/69549086785

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