Simultaneous Raman and laser-induced breakdown spectroscopy by a single setup

A new experimental configuration is introduced for simultaneous recording of Raman and laser-induced breakdown spectroscopy (LIBS) in a single spectrum. A laser pulse is divided into two beams by a Glan–Taylor prism. By focusing one beam to the sample surface, micro-plasma is created and LIBS signal...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2014-12, Vol.117 (4), p.1081-1089
Main Authors: Matroodi, F., Tavassoli, S. H.
Format: Article
Language:English
Subjects:
Beams (radiation)
Breakdown
Engineering
Focusing
Laser beams
Lasers
Liquids
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Quenching
Spectroscopy
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Summary:A new experimental configuration is introduced for simultaneous recording of Raman and laser-induced breakdown spectroscopy (LIBS) in a single spectrum. A laser pulse is divided into two beams by a Glan–Taylor prism. By focusing one beam to the sample surface, micro-plasma is created and LIBS signal is emitted. The other beam is directed to the same point of the sample, but does not focused. The scattered light due to the second laser beam is mixed with the plasma emission and is recorded in a single spectrum. Atomic and molecular spectra of some minerals and chemical samples are recorded by the mentioned setup. Due to the high-plasma quenching in liquids, LIBS signals are not detected for organic liquid samples, instead a strong stimulated Raman signal is appeared, and as a result, an overlay of ordinary Raman with stimulated Raman is observed.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-014-5929-4