Spontaneous emission from the C3 radical in carbon plasma

Spontaneous emission measurements are discussed for the Swings transitions of the C(3) radical in laser-generated graphite plasma, and the spectroscopy of the C(3) radical in carbon vapor and plasma is summarized. A review is given of some theoretical calculations and emission spectroscopic investig...

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Bibliographic Details
Published inApplied optics (2004) Vol. 46; no. 19; p. 4032
Main Authors Nemes, László, Keszler, Anna M, Parigger, Christian G, Hornkohl, James O, Michelsen, Hope A, Stakhursky, Vadim
Format Journal Article
LanguageEnglish
Published United States 01.07.2007
Subjects
Argon - analysis
Carbon - chemistry
Equipment Design
Free Radicals
Gases
Graphite
Helium - analysis
Lasers
Nanotechnology - instrumentation
Nanotechnology - methods
Spectrophotometry - methods
Time Factors
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Summary:Spontaneous emission measurements are discussed for the Swings transitions of the C(3) radical in laser-generated graphite plasma, and the spectroscopy of the C(3) radical in carbon vapor and plasma is summarized. A review is given of some theoretical calculations and emission spectroscopic investigations are presented. Time-averaged, laser-induced optical breakdown spectra are reported from Nd:YAG laser generated graphite microplasma. In 200-300 Torr of argon and helium, and depending on the specific experimental configuration, a weak emission continuum is observed centered at 400 nm when using a laser fluence of typically 1 J/cm(2). Such continua were not detected in our previous experiments using focused laser radiation. The possibilities for the origin of this continuum are considered.
ISSN:1559-128X
DOI:10.1364/AO.46.004032