Related Experiment Video
Updated: May 2, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Arbitrary control of electromagnetic flux in inhomogeneous anisotropic media with near-zero index
Jie Luo1, WeiXin Lu1, ZhiHong Hang1
1Department of Physics, Soochow University, 1 Shizi Street, Suzhou 215006, People's Republic of China.
Abstract:
We propose a method to control electromagnetic flux in an almost arbitrary way in wavelength and subwavelength scales. The capability of subwavelength flux control is enabled by the evanescent waves induced in a class of inhomogeneous anisotropic media with a near-zero permittivity component. By designing the spatial profile of the other permittivity component in such inhomogeneous media, the flow and distribution of energy flux can be conveniently manipulated. This method provides another approach to efficiently control electromagnetic flux in nonmagnetic media.
Related Concept Videos
Magnetostatic Boundary Conditions
Plane Electromagnetic Waves I
The EM field is assumed to be a...
Plane Electromagnetic Waves II
Electromagnetic Waves in Matter
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the medium,...
Propagation Speed of Electromagnetic Waves
Electromagnetic Fields
However, the observation of...

