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Initiation of NF3-H2chemical reactions via CO2laser irradiation of NF4BF4

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3 Author(s)
Benson, R. ; John Hopkins Univ., Laurel, MD, USA ; Bowen, R. ; Dengel, O.

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.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:16 ,  Issue: 11 )