Optogalvanic studies with a CO2 laser

Optogalvanic signals have been observed in low pressure, RF discharges in D2O, H2CO, NH3, SO2, H2S and H2O2 using an isotopic CO2 laser. Some newly identified coincidences in D2O, H2CO, NH3, H2S and SO2 should be useful for double resonance spectroscopy, heterodyne studies and optically pumped, far...

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Bibliographic Details
Published inOptics communications Vol. 48; no. 5; pp. 317 - 321
Main Authors MUENCHAUSEN, R. E, MAY, R. D, HILLS, G. W
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Science 1984
Subjects
Electric discharges
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Wave absorption
Optical spectrometry
Laser beam
Optogalvanic effect
Optogalvanic spectrometry
High frequency discharge
Electric discharge
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Summary:Optogalvanic signals have been observed in low pressure, RF discharges in D2O, H2CO, NH3, SO2, H2S and H2O2 using an isotopic CO2 laser. Some newly identified coincidences in D2O, H2CO, NH3, H2S and SO2 should be useful for double resonance spectroscopy, heterodyne studies and optically pumped, far infrared lasers. A measurement of a D2O discharge shows that the effect of laser absorption is to increase the impedance of the discharge. Studies of a RF cell with off-axis laser excitation support a V-T, acoustic wave mechanism.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(84)90307-9