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Title:
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Observation of two-photon induced photoemission optogalvanic effect |
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Author:
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Sasi Kumar, P R; Padmaja, G; Ravi Kumar, A V; Nampoori, V P N; Vallabhan, C P G
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Abstract:
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Observation of laser induced two-photon photoemission optogalvanic (TPPOG) effect from tungsten electrode in a discharge cell using 564 nm radiation obtained from a pulsed dye laser is described. The magnitude of the POG signal is studied as a function of laser energy under various discharge parameters. Competition between one-photon and two-photon processes has been observed when nitrogen gas is used in the discharge cell. |
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URI:
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http://dyuthi.cusat.ac.in/purl/2492
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Date:
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1991-04 |