151. Tailoring Terahertz Propagation by Phase and Amplitude Control in Metasurfaces
- Author
-
Quan Li, Leena Singh, Fengping Yan, Xueqian Zhang, Lixiang Liu, Jiaguang Han, Jingjing Zheng, and Weili Zhang
- Subjects
Terahertz radiation ,Electromagnetic spectrum ,Phase (waves) ,FOS: Physical sciences ,Physics::Optics ,Applied Physics (physics.app-ph) ,Popular Physics (physics.pop-ph) ,02 engineering and technology ,Physics - Popular Physics ,01 natural sciences ,Optics ,Planar ,0103 physical sciences ,Classical electromagnetism ,Electrical and Electronic Engineering ,010306 general physics ,Instrumentation ,Physics ,Wavefront ,Radiation ,business.industry ,Physics - Applied Physics ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Amplitude ,Surface wave ,Optoelectronics ,0210 nano-technology ,business ,Optics (physics.optics) ,Physics - Optics - Abstract
Using metasurfaces to control the wave propagation at will has been very successful over the broad electromagnetic spectrum in recent years. By encoding specially designed abrupt changes of electromagnetic parameters into metasurfaces, such as phase and amplitude, nearly arbitrary control over the output wavefronts could be realized. Constituted by a single- or fewlayer of planar structures, metasurfaces are straightforward in design and fabrication, thus promising many realistic applications. Moreover, such control concept can be further extended to the surface wave regime. In this review, we present our recent progress on metasurfaces capable of tailoring the propagation of both free-space and surface terahertz waves. Following an introduction of the basic concept and theory, a number of unique terahertz metasurfaces are presented, showing the ability in devising ultra-thin and compact functional terahertz components.
- Published
- 2017