Early time ion dynamics and progress towards laser cooling in an ultracold neutral plasma

Date
2008
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract

The progress toward laser cooling an ultracold plasma is presented in this thesis. Ultracold neutral plasmas are created by photo-ionizing laser cooled Strontium atoms. Initially this system is very strongly coupled, however the ions rapidly heat up leaving the plasma on the borderline of the strongly coupled regime. To counteract the effects of this heating an attempt to laser cool the ions in the system is undertaken. However, from these experiments we discovered that velocity changing collisions occurring in the system prevented laser cooling. In order to determine the collisions rate, a collision model was developed to simulate the spectra of the plasma from optical pumping experiments. These experiments and simulations in fact demonstrate that collisions are occurring at a fast enough rate to prevent ion cooling on the time scale of our experiment.

Description
Degree
Doctor of Philosophy
Type
Thesis
Keywords
Atoms & subatomic particles, Plasma physics, Pure sciences, Ion cooling, Laser cooling, Neutral plasma, Ultracold plasmas
Citation

Simien, Clayton Earl. "Early time ion dynamics and progress towards laser cooling in an ultracold neutral plasma." (2008) Diss., Rice University. https://hdl.handle.net/1911/103575.

Has part(s)
Forms part of
Published Version
Rights
Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
Link to license
Citable link to this page