Highly excited states of atomic potassium in an external electric field
Hillard, Grover Barry
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https://hdl.handle.net/2142/25322
Description
Title
Highly excited states of atomic potassium in an external electric field
Author(s)
Hillard, Grover Barry
Issue Date
1984
Doctoral Committee Chair(s)
Nayfeh, Munir H.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
photoionization spectrum
atomic potassium
quasi-bound Stark states
electric field enhanced collision depolarization
Language
en
Abstract
The photoionization spectrum of potassium in an external electric field is examined. Detailed studies are made of the strengths, spacing, and polarization dependence of the quasi-bound Stark states lying above E = O. The results are interpreted as the first observation of electric field enhanced collisional depolarization by charged particles. This conclusion is supported by calculations indicating a depolarizing cross section as large as 10-5 cm2 for the conditions of the experiment.
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