ARPA-NRL Laser Program. Semiannual technical report to Defense Advanced Research Projects Agency, 1 July 1974--31 December 1974

Technical Report · Tue Jul 01 04:00:00 EDT 1975

OSTI ID:7351111

This program is concerned with three project areas: Chemical Infrared Lasers, Electrical Infrared Lasers and Electronic State Lasers. The Chemical Infrared Laser Program is concerned with the development of pulsed HCl laser systems and the study of molecular energy transfer processes. Several new sources of Cl atoms have been identified that lead to improved HCl laser performance. Low-temperature vibrational relaxation measurements in CO/sub 2/ mixtures indicate a minimum in the relaxation rates near room temperature. The Electrical Infrared Program emphasizes electric-discharge-gasdynamic lasers and electron-beam pumping of potential laser systems in the mid infrared. Energy transfer has been observed in the D/sub 2/*-HCl system and a D/sub 2/*-CO/sub 2/ laser has been developed. A number of excitation approaches are being evaluated for application to Electronic State Lasers. Studies of direct electron-beam excitation of the Ar*-N/sub 2/ laser have been completed and a sophisticated model for electron energy deposition has been developed. Optical pumping techniques, as used in the previously reported Hg vapor laser, are being extended to other atomic systems. Studies of the Hg vapor laser are essentially complete and reported in detail. A transverse discharge Cu vapor laser has been assembled and is being tested.

• Research Organization: Naval Research Lab., Washington, D.C. (USA)
• OSTI ID: 7351111
• Report Number(s): AD-A-014861; NRL-MR-3084
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ARGON
CARBON DIOXIDE LASERS
CHEMICAL LASERS
COPPER
CRYOGENIC FLUIDS
DEUTERIUM COMPOUNDS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GAS LASERS
GASES
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LASERS
METALS
NITROGEN
NONMETALS
RARE GASES
RESEARCH PROGRAMS
TRANSITION ELEMENTS
VAPORS