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          Institute: MPI für Kernphysik     Collection: Theoretical Quantum Dynamics     Display Documents

ID: 475881.0, MPI für Kernphysik / Theoretical Quantum Dynamics
Light propagation in dense and chiral media
Authors:Fleischhaker, Robert
Referees:Evers, Jörg; Weidemüller, Matthias
Date of Approval (YYYY-MM-DD):2009-10-28
Name of University:Ruprecht-Karls Universität
Place of University:Heidelberg
Physical Description
(e.g. Total Number of Pages):
IX, 111 S. : Ill., graph. Darst.
Audience:Experts Only
Abstract / Description:In quantum optics, the electromagnetic character of light is mostly reduced to its electric component. Technologically interesting, a medium interacting with both the electric and magnetic component has recently been proposed. But the suggested combination of high density and induced chirality to enhance the magnetic response is beyond the limits of current experiments. This thesis studies light propagation in dense and chiral media, assessing both concepts separately and in more accessible parameter ranges. In this context, we analyze a so-called closed-loop system, demonstrate a scheme for group velocity control in the UV range, show how to utilize parametric processes for light propagation, and explain effects due to high density on a slow light pulse. We derive the wave equation for media with induced chirality and solve it on the level of general medium response coefficients. This is then followed by a specific example, in which the developed concepts are applied to study light propagation with chiral interactions. We find that a chiral medium is an ideal implementation of a closed-loop-phase control scheme and show that the dynamics of a slow light pulse can be controlled throughout propagation time. Furthermore, our results demonstrate that the magnetic probe field component can become relevant for parameters achievable in current experiments.
Document Type:PhD-Thesis
Communicated by:C.H. Keitel
Affiliations:MPI für Kernphysik/ Group of C.H. Keitel
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