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Title:
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Photoemission optogalvanic effect studies in N2, NO2 and Ar discharges under pulsed laser excitation |
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Author:
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Sasi Kumar, P R; Nampoori, V P N; Vallabhan, C P G
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Abstract:
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A two-photon induced photoemission optogalvanic effect which brings about a change in the discharge voltage when a pulsed dye laser beam is focused on a tungsten electrode has been described. The experiment is performed with N2, NO2 and Ar discharges. The magnitude of the signal voltage is studied as a function of laser energy and discharge current. The effective quantum efficiency in the discharge is found to be larger than that in the vacuum condition. |
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URI:
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http://dyuthi.cusat.ac.in/purl/2437
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Date:
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1993 |