Title :
Initiation of NF3-H2chemical reactions via CO2laser irradiation of NF4BF4
Author :
Benson, Richard C. ; Bowen, Richard E. ; Dengel, Ottmar H.
Author_Institution :
John Hopkins Univ., Laurel, MD, USA
fDate :
11/1/1980 12:00:00 AM
Abstract :
NF4BF4has been irradiated with a low-power CO2laser to produce reactive species which then initiate reactions in an ambient NF3-H2mixture. The laser-induced decomposition of NF4BF4in vacuum was measured as a function of laser power and energy. The laser-induced decomposition threshold was determined to be 40 mJ, which corresponds to a laser fluence of 20 J/cm2. This same value was determined for the initiation threshold of NF3-H2reactions via CO2laser irradiation of NF4BF4. Visible and infrared emissions were observed from initiated NF3-H2mixtures. This radiative technique has attractive features for initiating reactions in solid-gas systems.
Keywords :
Carbon dioxide lasers; Laser chemistry applications; Nitrogen materials/devices; Chemical lasers; Chemical products; Gas lasers; Laser excitation; Noise measurement; Optical materials; Plasma chemistry; Power lasers; Solid lasers; Surface emitting lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1980.1070401
