High gain atomic oxygen lasing in air

Arthur Dogariu, James B. Michael, Richard B. Miles

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


We demonstrate coherent light generation and propagation forwards and backwards from a remotely generated high gain region created in ambient air. A 100 ps ultraviolet laser pulse is tuned to a two-photon atomic oxygen resonance, resulting in simultaneous dissociation and excitation in the focal volume. The excitation laser excites the resulting atomic oxygen atoms over a millimeter long region. We measure the gain to be greater than 60 cm-1 and observe near-diffraction limited propagation in the forward and backward directions. We present evidence of the coherent nature of the emission. The high optical gain and strong directionality opens new opportunities for the remote detection of trace species and provides greater range for stand-off detection capabilities.

Original languageEnglish (US)
Title of host publication42nd AIAA Plasmadynamics and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101472
StatePublished - 2011
Event42nd AIAA Plasmadynamics and Lasers Conference 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Publication series

Name42nd AIAA Plasmadynamics and Lasers Conference


Other42nd AIAA Plasmadynamics and Lasers Conference 2011
Country/TerritoryUnited States
CityHonolulu, HI

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics


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