DocumentCode
1080638
Title
Initiation of NF3 -H2 chemical reactions via CO2 laser irradiation of NF4 BF4
Author
Benson, Richard C. ; Bowen, Richard E. ; Dengel, Ottmar H.
Author_Institution
John Hopkins Univ., Laurel, MD, USA
Volume
16
Issue
11
fYear
1980
fDate
11/1/1980 12:00:00 AM
Firstpage
1223
Lastpage
1226
Abstract
NF4 BF4 has been irradiated with a low-power CO2 laser to produce reactive species which then initiate reactions in an ambient NF3 -H2 mixture. The laser-induced decomposition of NF4 BF4 in 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 -H2 reactions via CO2 laser irradiation of NF4 BF4 . Visible and infrared emissions were observed from initiated NF3 -H2 mixtures. 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;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1980.1070401
Filename
1070401
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