Development of tunable high pressure CO2 laser for lidar measurements of pollutants and wind velocities, January 1976 to December 1977
Ali Javan, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Langley Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1979 - Technology & Engineering - 23 pages
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aluminum amplifying medium application arc formation atmospheres beam preionized build-up of oscillation capacitors counter-propagating waves DIAL measurements e-beam Fabry-Perot frequency purity frequency spread frequency tunable laser frequency tuning gain-above-loss factor gain-switched germanium grating response high current high density plasma High Pressure C02 Injection Locking insulator plate ionization Javan jitter Joule large number laser energy laser frequency spectrum laser oscillation laser resonator LDC device LDC laser lens spacing Littrow long term stability micron microsecond mode competition effect mode lying multi-atmospheric laser multi-atmospheric medium multi-mode NASA operation optical organic seed gas oscillation build-up output coupler partial pressure peak plexiglas Pressure C02 Laser produce pulsed CO2 laser purity and long regenerative amplification spark gap spatial hole spatial-hole burning spontaneous emission standing wave suppressor mirror sustainer voltage TEA laser telescope tion top plate transient travelling wave mode Travelling Wave Ring triggering U.V. illumination U.V. preionization uni-directional travelling wave uniform high density Wind Velocities