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Description
Title: | Laser physics and spectroscopy in alkali vapor-noble gas mixtures |
Author(s): | Mironov, Andrey |
Director of Research: | Eden, James Gary |
Doctoral Committee Chair(s): | Eden, James Gary |
Doctoral Committee Member(s): | Carney, Paul Scott; Cunningham, Brian T.; Gruebele, Martin |
Department / Program: | Electrical & Computer Eng |
Discipline: | Electrical & Computer Engr |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
Subject(s): | Spectroscopy
photoassociation alkali lasers laser efficiency optical pumping circular polarization spin exchange |
Abstract: | Experiments are described in which the lower excited states of alkali-rare gas diatomic molecules are probed in alkali vapor-noble gas mixtures by laser spectroscopy. A two color scheme for pumping the alkali D2 line laser has been demonstrated that offers a quantum efficiency above one. More than 100 cm^-1 of thermal energy is extracted from the gain medium for every laser photon. An optical amplifier based on free-free transition of alkali-rare gas pairs has been demonstrated in the 793.3-794.3 nm region of the spectrum. Lasing on specific hyperfine atomic transitions-and, as a result, a 50% D2 line laser efficiency increase-has been demonstrated when alkali vapor-noble gas mixtures are pumped with a circularly polarized light in contrast to a classical pumping scheme (linearly polarized light). |
Issue Date: | 2016-07-11 |
Type: | Thesis |
URI: | http://hdl.handle.net/2142/92766 |
Rights Information: | Copyright 2016 Andrey Mironov |
Date Available in IDEALS: | 2016-11-10 |
Date Deposited: | 2016-08 |
This item appears in the following Collection(s)
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Dissertations and Theses - Electrical and Computer Engineering
Dissertations and Theses in Electrical and Computer Engineering -
Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois