Filament-based stimulated Raman detection

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United States of America Patent

PATENT NO 9001325
APP PUB NO 20130321801A1
SERIAL NO

13983451

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Abstract

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In apparatus and methods of Raman spectroscopy in air, a target region is excited by a laser pump pulse exceeding the critical power for self-focusing in air and having a duration after self-focusing of 15 fs or less. A laser probe pulse having a duration in the range of 200 fs to 100 ps and an energy of at least 20 μJ is directed at the excited target region. Stimulated Raman scattering from the interaction between the excited target region and the laser probe pulse is detected. The target region can be outside the spectrometer, with ambient air in between used for the self-focusing.

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Patent Owner(s)

  • TEMPLE UNIVERSITY - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION;TEMPLE UNIVERSITY —OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Levis, Robert J Rose Valley, US 7 408
Odhner, Johanan H Huntingdon Valley, US 1 7

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