Burton, David A. and Noble, Adam and Tucker, Robin W. and Wiltshire, D. L. (2005) Twisted electromagnetic modes and Sagnac ring lasers. Classical and Quantum Gravity, 22 (6). pp. 909-931. ISSN 0264-9381
Full text not available from this repository.Abstract
A new approximation scheme, designed to solve the covariant Maxwell equations inside a rotating hollow slender cavity (modelling a ring laser), is constructed. It is shown that for well-defined conditions there exist TE and TM modes with respect to the longitudinal axis of the cavity. A twisted mode spectrum is found to depend on the integrated Frenet torsion of the cavity and this in turn may affect the Sagnac beat frequency induced by a non-zero rotation of the cavity. The analysis is motivated by attempts to use ring lasers to measure terrestrial gravito-magnetism or the Lense–Thirring effect produced by the rotation of the earth.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Classical and Quantum Gravity |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 9664 |
| Deposited By: | Ms Margaret Calder |
| Deposited On: | 18 Jun 2008 14:36 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 21 Mar 2013 08:47 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/9664 |
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