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Laser-Induced Breakdown Spectrometry
The Chemical Educator, 1998In the past 20 years, the number of instrumental techniques available to the chemist has grown exponentially. In order to help our readers keep up with this rapidly growing field, tutorial articles on chemical instrumentation will be a regular feature of The Chemical Educator.
JOSEPH SNEDDON, YONG-ILL LEE
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Coherent control of laser-induced breakdown
Optics Letters, 2006We demonstrate coherent control of laser-induced optical breakdown in Ar and Xe with a femtosecond time-scale pulse train. By using a genetic algorithm to set the relative phases of seven optical sidebands that span two octaves of bandwidth, we enhance or suppress the probability of breakdown, vary the onset time of the spark, and to some extent, vary ...
M Y, Shverdin +3 more
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Laser-induced breakdown of helium
Journal of Physics D: Applied Physics, 1980A theoretical investigation is made into the ionisation of helium, at pressures of 1800-17000 Torr (0.24-2.27 MPa) by ruby laser radiation of pulse-length 40 ns. It is shown that, when the variation of electron energy gain in elastic collisions is taken into account, the agreement between computed and experimental breakdown threshold intensities is ...
C J Evans, Y E E -D Gamal
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- Laser-Induced Breakdown Spectroscopy
Research Journal of Pharmacy and Technology, 2016Laser Induced Breakdown Spectroscopy (LIBS) is an atomic emission spectroscopy technique for a rapid chemical analysis of different type of analytes like solids, liquids and gases. LIBS can often be referred to as its alternative name: laser-induced plasma spectroscopy (LIPS).
Sathish Kumar Konidala +2 more
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Laser-induced breakdown of gases
Reports on Progress in Physics, 1975Powerful flashes of ultraviolet, visible and near-infrared laser light can cause breakdown and plasma formation in gases which are normally transparent at these wavelengths. The ionization processes involved are multiphoton absorption and inverse bremsstrahlung or cascade collisional ionization, in competition with deionization by diffusion ...
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Laser-Induced Breakdown Spectroscopy
2015Abstract Laser-induced breakdown spectroscopy (LIBS) represents a useful analytical tool for elemental analysis of solid or liquid materials. An intense pulsed laser can be employed, focused on the surface of the material, to ignite a spark and generate a plume of gaseous atoms and molecules in a distribution of excited states.
Robert N. Compton, Michael A. Duncan
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Combining Laser-Induced Breakdown Spectroscopy with Molecular Laser-Induced Fluorescence
Applied Spectroscopy, 2016We propose combining laser-induced breakdown spectroscopy (LIBS) with molecular laser-induced fluorescence (MLIF) with resulting plasma-borne molecules as a means of studying laser-induced plasma (LIP). Examples of this method with LIP-created Al, Si, and B monoxides are presented.
Lev, Nagli, Michael, Gaft
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Polarization-resolved laser-induced breakdown spectroscopy
Optics Letters, 2009It is shown that plasma polarization measurements can be used to enhance the sensitivity of laser-induced breakdown spectroscopy (LIBS). The polarization of the plasma emission is used to suppress the continuum with only slight attenuation of the discrete atomic and ionic spectra.
Youbo, Zhao +3 more
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Femtosecond Laser-Induced Breakdown Spectroscopy of Trinitrotoluene
2007 Conference on Lasers and Electro-Optics (CLEO), 2007Femtosecond laser-induced breakdown spectroscopy (LIBS) has been shown to be effective in detecting TNT, RDX, and other explosive related compounds. We chose to focus on aluminum and glass substrates since these allowed us to study the effects of strong linear absorption for a metal and the multiphoton absorption for a dielectric.
Caroline McEnnis +3 more
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Approach to Detection in Laser-Induced Breakdown Spectroscopy
Analytical Chemistry, 2007Gated detection with intensified detectors, e.g., ICCDs, is today the accepted approach for detection of plasma emission in laser-induced breakdown spectroscopy (LIBS). However, these systems are more cost-intensive and less robust than nonintensified CCDs.
M, Mueller +4 more
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