Work

Reconciliation of generalized refraction with diffraction theory

Year: 2012

Type: article

Abstract: When an electromagnetic wave is obliquely incident on the interface between two homogeneous media with different refractive indices, the requirement of phase continuity across the interface generally leads to a shift in the trajectory of the wave. When a linearly position-dependent phase shift is imposed at the interface, the resulting refraction may be described using a generalized version of Snell's law. In this Letter, we establish a formal equivalence between generalized refraction and blazed diffraction gratings, further discussing the relative merits of the two approaches.

Source: Optics Letters

DOI: 10.1364/ol.37.002391

Authors: Stéphane Larouche, David R. Smith

Institution: Duke University

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Multidisciplinary University Research Initiative

Award: G6985878078