光电工程, 2017, 44 (3): 375, 网络出版: 2017-06-06
Research advances of hyperbolic metamaterials and metasurfaces
Research advances of hyperbolic metamaterials and metasurfaces
摘要
Abstract
In recent years, with the continuous progress of micro/nano fabrication technique, the interaction of material and elec-tromagnetic wave in the subwavelength scale has attracted widespread attention. Electromagnetic metamaterial is arti-ficial material composed of building blocks whose feature size is much smaller than the working wavelength, with the electromagnetic properties that does not exist in natural materials. As an important branch of electromagnetic met-amaterials, hyperbolic metamaterials become the focus of research for their unique characteristic to control near-field waves. By changing the size and arrangement of the components of hyperbolic metamaterials, the excitation intensity and direction of the surface plasmons (SPs) in them can be modulated, so that the unique dispersion curves can be achieved. Hyperbolic metamaterials have been used in many fields, such as subwavelength imaging, light localization and enhanced spontaneous emission. Hyperbolic metasurface is a new type of planar metamaterials with hyperbolic dispersion relationship and has many similarities in theory and applications with hyperbolic metamaterial. Compared with the bulk hyperbolic matematerials, hyperbolic metasurfaces exhibit more excellent performances because the large reduction in the longitudinal dimension limits the propagation of the electromagnetic waves in the two-dimensional plane.
Zijie Zhang, Yuzhang Liang, Ting Xu. Research advances of hyperbolic metamaterials and metasurfaces[J]. 光电工程, 2017, 44(3): 375. Zijie Zhang, Yuzhang Liang, Ting Xu. Research advances of hyperbolic metamaterials and metasurfaces[J]. Opto-Electronic Engineering, 2017, 44(3): 375.