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Refraction and geometry in Maxwell's equations

Ward, A. J., Pendry, J. B.·1996·Journal of Modern Optics

Abstract

Computational studies of Maxwell's equations in complex geometries encountered in photonic band structure calculations run into difficulties when several length scales occur, such as the wavelength of light in free space and the skin depth in metal. These problems are remedied by using an adaptive co-ordinate system which expands or contracts length scales as necessary. Here we show that moving to a general co-ordinate transformation is equivalent to renormalizing ε and μ. This is an huge simplification because now we need only write one computer code in a Cartesian system, and we can use this same code to handle any co-ordinate system by adjusting the ε and μ we feed into the calculation.

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Metadata

Authors
Ward, A. J., & Pendry, J. B.
Venue
Journal of Modern Optics
Published
1996-04
Volume
43
Issue
4
Pages
773-793
ISSN
  • 0950-0340 (ISSN-L)
  • 1362-3044
OpenAlex
W2041613904
Cited by
483
References
0
FWCI
3.40
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Refraction and geometry in Maxwell's equations. https://app.cochat.ai/papers/10.1080/09500349608232782
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Ward, A. J., & Pendry, J. B. (1996). Refraction and geometry in Maxwell's equations. Journal of Modern Optics. https://doi.org/10.1080/09500349608232782

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