Above threshold ionization with ultrahigh intensity laser light

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dc.contributor.advisorDitmire, Todd
dc.creatorMaltsev, Alexandre S.
dc.date.accessioned2021-05-06T20:48:43Z
dc.date.available2021-05-06T20:48:43Z
dc.date.issued2004-12-18
dc.description.abstractThe progress in technology of the ultrahigh power lasers gave physicists a new tool for exploring new extreme regimes of interaction between electro- magnetic field and matter, as well as resulting extreme states of matter. With the development of petawatt class lasers and implementation of techniques for better focusing (adaptive optics, such as deformable mirrors) intensities of ~ 10²³ W/cm² should become available in the near future. The electric field of a laser focused to the intensity of 10²¹ W/cm² can accelerate an electron from rest to ultra-relativistic energies of hundreds of MeV within a fraction of the laser period. What happens to electrons bound in atomic or ionic systems at these intensities is not quite clear and existing theories are largely qualitative. The goal of the work described in this thesis was to obtain some quantitative theoretical, as well as experimental results pertaining to ionization of rarefied gases at ultrahigh intensities. Some results of theoretical and computational work were published in PRL [1]. Several experimental runs were performed using Hercules laser of the Center for Ultrafast Optical Science (CUOS) in the University of Michigan. Hercules running at 10 TW level could in principle provide the focused intensity of about 4 x 10²⁰ W/cm² with the optics used. The experiment faced a great number of difficulties, so that no truly new results were obtained. The problems are being worked onen_US
dc.description.departmentPhysicsen_US
dc.format.mediumelectronicen_US
dc.identifier.urihttps://hdl.handle.net/2152/85568
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/12532
dc.language.isoengen_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.rights.restrictionRestricteden_US
dc.subjectHigh intensity laseren_US
dc.subjectHERCULES laseren_US
dc.subjectLaser-atom interactionen_US
dc.subjectGas ionizationen_US
dc.titleAbove threshold ionization with ultrahigh intensity laser lighten_US
dc.typeThesisen_US
dc.type.genreThesisen_US
thesis.degree.departmentPhysicsen_US
thesis.degree.disciplinePhysicsen_US
thesis.degree.grantorUniversity of Texas at Austinen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US

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