dc.contributor.author | King, C | |
dc.contributor.author | Horsley, S | |
dc.contributor.author | Philbin, TG | |
dc.date.accessioned | 2018-05-16T12:00:41Z | |
dc.date.issued | 2018-05-15 | |
dc.description.abstract | The Helmholtz equation can be written as coupled equations for the amplitude and phase. By considering spatial phase distributions corresponding to reflectionless wave propagation in the plane and solving for the amplitude in terms of this phase, we designed two-dimensional graded-index media which do not scatter light. We give two illustrative examples, the first of which is a periodic grating for which diffraction is completely suppressed at a single frequency at normal incidence to the periodicity. The second example is a medium which behaves as a “beam shifter” at a single frequency; acting to laterally shift a plane wave, or sufficiently wide beam, without reflection. | en_GB |
dc.description.sponsorship | C.G.K. acknowledges financial support from the EPSRC
Centre for Doctoral Training in Electromagnetic Metamaterials
EP/L015331/1. S.A.R.H. acknowledges financial support
from the Royal Society and TATA (RPG-2016-186). | en_GB |
dc.identifier.citation | Vol. 97, article 053818 | en_GB |
dc.identifier.doi | 10.1103/PhysRevA.97.053818 | |
dc.identifier.uri | http://hdl.handle.net/10871/32875 | |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.rights | © 2018 American Physical Society | en_GB |
dc.title | Designing scattering-free isotropic index profiles using phase-amplitude equations | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2018-05-16T12:00:41Z | |
dc.identifier.issn | 1050-2947 | |
dc.description | This is the final version of the article. Available from American Physical Society via the DOI in this record. | en_GB |
dc.identifier.journal | Physical Review A | en_GB |