Transmutation of singularities in optical instruments

Details Transmutation of singularities in optical instruments Transmutation of singularities in optical instruments

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008njph...10k5038t&link_type=abstract

New Journal of Physics, Volume 10, Issue 11, pp. 115038 (2008).

Physics

22

Scientific paper

We propose a method for eliminating a class of singularities in optical media where the refractive index goes to zero or infinity at one or more isolated points. Employing transformation optics, we find a refractive index distribution equivalent to the original one that is nonsingular but shows a slight anisotropy. In this way, the original singularity is 'transmuted' into another, weaker type of singularity where the permittivity and permeability tensors are discontinuous at one point. The method is likely to find applications in designing and improving optical devices by making them easier to implement or to operate in a broad band of the spectrum.

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