Zero reflection and transmission in graded index media
King, CG; Horsley, SAR; Philbin, TG
Date: 6 May 2016
Journal
Journal of Optics
Publisher
Springer Verlag
Publisher DOI
Abstract
Graded index media whose electric susceptibility satisfies the spatial Kramers-Kronig relations
are known to be one-way reflectionless to electromagnetic radiation, for all angles of incidence. We
demonstrate how a family of these media, in addition to being reflectionless, also have negligible
transmission. To this end, we discuss ...
Graded index media whose electric susceptibility satisfies the spatial Kramers-Kronig relations
are known to be one-way reflectionless to electromagnetic radiation, for all angles of incidence. We
demonstrate how a family of these media, in addition to being reflectionless, also have negligible
transmission. To this end, we discuss how the transmission coefficient for the propagation of waves
through a medium whose permittivity is built from poles in the complex position plane, with residues
that sum to infinity, can be controlled by tuning the positions and residues of the poles. In particular,
we have shown how to make the transmission arbitrarily small, and hence maximise the absorption
of the wave’s energy. This behaviour is confirmed by numerical simulations.
Physics and Astronomy
Faculty of Environment, Science and Economy
Item views 0
Full item downloads 0