Sasi Kumar, P R; Dr.Nampoori,V P N(Cochin University of Science and Technology, August 20, 1994)
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Abstract:
Electrical gas discharges have been the subject of numerous
investigations from the last century due to their growing
interest in technological and fundamental applications.
Absorption of electromagnetic radiation by a gas discharge result
into a change in electrical impedance due to a significant
perturbations in the steady state population of excited levels
and the degree of ionization. This change in impedance produced
by resonant absorption of radiation is known as optogalvanic COG)
effect. where as that is produced by injecting electrons in to
the discharge by photoelectric emission is usually known as
photoemission optogalvanic (FOG) effect. With the development of
lasers and sophisticated electronic equipment. these effects have
established their importance in analytical and spectroscopic
measurements. The present thesis deals with the work carried out
by the author in the field optogalvanic effect during the past
few years at the Department of Physics in Cochin University of
Science| and "Fechnology. The results and the observation are
summarized in nine chapters and the references to the literature
is made at the end of each chapter
Description:
Department of Physics. Cochin University of Science and
Technology