Hydrogen atom in ultraintense laser fields: Photoionization and spectroscopy study.
Item
-
Title
-
Hydrogen atom in ultraintense laser fields: Photoionization and spectroscopy study.
-
Identifier
-
AAI8914764
-
identifier
-
8914764
-
Creator
-
Janjusevic, Miodrag D.
-
Contributor
-
Adviser: Marvin H. Mittleman
-
Date
-
1988
-
Language
-
English
-
Publisher
-
City University of New York.
-
Subject
-
Physics, Atomic
-
Abstract
-
The subject of investigation is the photoionization process when atomic hydrogen is subjected to ultraintense laser field. Laser field is at constant ultraintense level.;That brings outs effects that such fields have on atomic structure. In that respect our approach is different from the previous methods where laser field is adiabatically switched on, thus covering the range of intensity from zero to ultraintense.;Our focus is on the binding energy of a dressed metastable state of an H atom in linearly and circularly polarized laser field. We use the Rayleigh-Ritz variational method to determine the energy of a bound state and then calculate the width of that variational minimum to determine a photoionization rate.;We use a nonrelativistic approach and the dipole approximation whose validity we proved aposteriori. We found no bound state for circularly polarized laser light but find a very losely bound state for a linearly polarized laser light.;The binding energy of this state behaves as I{dollar}\sp{lcub}-1/2{rcub}{dollar}(lnI){dollar}\sp2{dollar}. The width of the state has the same behavior with intensity and the coefficient is roughly given.
-
Type
-
dissertation
-
Source
-
PQT Legacy CUNY.xlsx
-
degree
-
Ph.D.
