Armitage, L. J., Doost, M. B., Langbein, W. and Muljarov, E. A. 2014. Resonant-state expansion applied to planar waveguides. Physical Review A 89 (5) , 053832. 10.1103/PhysRevA.89.053832 |
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Abstract
The resonant-state expansion, a recently developed method in electrodynamics, is generalized here to planar open optical systems with non-normal incidence of light. The method is illustrated and verified on exactly solvable examples, such as a dielectric slab and a Bragg reflector microcavity, for which explicit analytic formulas are obtained. This comparison demonstrates the accuracy and convergence of the method. Interestingly, the spectral analysis of a dielectric slab, in terms of resonant states, reveals an influence of waveguide modes in the transmission. These modes, which on-resonance do not couple to external light, surprisingly do couple to external light for off-resonant excitation.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QB Astronomy |
Publisher: | American Physical Society |
ISSN: | 1050-2947 |
Funders: | Engineering and Physical Sciences Research Council |
Date of First Compliant Deposit: | 27 April 2016 |
Date of Acceptance: | 14 April 2014 |
Last Modified: | 29 Apr 2020 17:45 |
URI: | http://orca.cf.ac.uk/id/eprint/84950 |
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