Observation of OH Radical Reactions with Atomic Hydrogen in He/H 2 O Plasmas by Laser-Induced Fluorescence Spectroscopy

A novel atmospheric pressure plasma device that generates atomic hydrogen has been developed. The reaction of OH radicals with atomic hydrogen supplied from the device was investigated in a He/H 2 O mixture at a pressure of 530 Torr by laser-induced fluorescence (LIF) spectroscopy. OH radicals were...

Full description

Saved in:
Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 45; no. 10S; p. 8260
Main Authors Takiyama, Ken, Namba, Shinichi, Yamasaki, Tsutomu, Shoji, Akira, Kwon, Jun-Hyoun, Park, Rae-Eun, Nojima, Hideo
Format Journal Article
LanguageEnglish
Published 01.10.2006
Online AccessGet full text

Cover

More Information
Summary:A novel atmospheric pressure plasma device that generates atomic hydrogen has been developed. The reaction of OH radicals with atomic hydrogen supplied from the device was investigated in a He/H 2 O mixture at a pressure of 530 Torr by laser-induced fluorescence (LIF) spectroscopy. OH radicals were generated using a dielectric barrier discharge (DBD) plasma and excited to A 2 Σ + ( v '=1) from X 2 Π( v ''=0) by a frequency-doubled dye laser (282 nm). When the device was operated, OH-LIF intensity was reduced near the DBD plasma. The spatial density profile of the OH radicals was also obtained when the device was turned on and off. The reaction mechanism was briefly discussed.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.45.8260