Messinger, A., Westerberg, N. and Barnett, S. M. (2020) Spontaneous emission in anisotropic dielectrics. Physical Review A: Atomic, Molecular and Optical Physics, 102, 013721. (doi: 10.1103/PhysRevA.102.013721)
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Abstract
The emission properties of atoms lie at the foundations of both quantum theory and light-matter interactions. In the context of macroscopic media, exact knowledge thereof is important both in current quantum technologies as well as in fundamental studies. While for isotropic media, this is a very well-studied problem, there are still big gaps in the theory of anisotropic media. In particular, to the best of our knowledge, an explicit expression for the spontaneous emission rate in general anisotropic media has not been presented. In this work, we first derive the quantised electromagnetic field operators to calculate the emission rate in uniaxial media. For the more general case of biaxial media we propose an approximate expression based on interpolation between the limiting cases of uniaxial media. We support our model with numerical simulations which are in strong agreement for typical media configurations, and furthermore show how local field effects can be taken into account in the model.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Barnett, Professor Stephen and Messinger, Ms Anette and Westerberg, Dr Niclas |
Authors: | Messinger, A., Westerberg, N., and Barnett, S. M. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Physical Review A: Atomic, Molecular and Optical Physics |
Publisher: | American Physical Society |
ISSN: | 1050-2947 |
ISSN (Online): | 1094-1622 |
Copyright Holders: | Copyright© 2020 American Physical Society |
First Published: | First published in Physical Review A: Atomic, Molecular and Optical Physics 102:013721 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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