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Jmar Demos DP-LIBS Laser

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SAN DIEGO, July 27, 2007 -- Jmar Technologies Inc. demonstrated a portable, double-pulse (DP) laser technology intended for real-time spectrochemical hazard analysis for the US Army on Thursday.

The demonstration, under an Army Phase II SBIR award, followed an earlier feasibility study on using a single laser to produce the necessary double pulse. Jmar, a San Diego developer of laser-based equipment for imaging, analysis and fabrication at the nanoscale, was selected for a Phase II contract to design and build such a laser based on its BriteLight laser technology for producing intense plasmas. It said its prototype exceeded the Army Research Laboratory’s standoff (or operating) distance performance specifications by a factor of two.

With the unique combination of high power and brightness, the outcome promises to increase the number of laser-induced breakdown spectroscopy (LIBS) applications, Jmar said. DP-LIBS enables detection and identification of very small (femtogram) traces of hazardous materials such as explosives and drugs, at close contact and standoff distances, and for applications including forensics, biological contaminant detection and agricultural analysis, such as over- or under-fertilized crops.

Neil Beer, CEO and president of Jmar, said, "We’re pleased by the ability of our redesigned Britelight laser to substantially increase the optical signal for LIBS. The potential impact covers multiple critical military missions. If the Army elects to implement DP-LIBS, coupled with the commercial and national defense applications, it represents a significant opportunity for the company.”

For more information, visit: www.jmar.com
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Published: July 2007
Glossary
laser-induced breakdown spectroscopy
Laser-induced breakdown spectroscopy (LIBS) is an analytical technique that uses a high-powered laser pulse to ablate a small amount of material from a sample, creating a plasma. This plasma emits light, which is analyzed to determine the elemental composition of the sample. Principle of operation: A focused laser pulse is directed at the sample, causing rapid heating and vaporization of a small amount of material. The vaporized material forms a high-temperature plasma, which consists of...
nano
An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
BiophotonicsBriteLightdefensedouble-pulse laserDP-LIBSJmarJmar Technologieslaser-induced breakdown spectroscopynanoNews & FeaturesphotonicsLasers

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