Related Experiment Video
Updated: Feb 28, 2026
09:33
Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
6.7K
Flat Terahertz Reflective Focusing Metasurface with Scanning Ability.
Huan Yi1,2, Shi-Wei Qu3, Bao-Jie Chen2
1School of Electronic Engineering, University of Electronic Science and Technology of China (UESTC), 2006 Xiyuan Avenue, Western High-Tech District, Chengdu, 611731, China.
Scientific Reports
|June 16, 2017
Summary
Researchers developed a novel flat reflective metasurface capable of controllable terahertz focus scanning. This breakthrough enables dynamic manipulation of terahertz waves for advanced imaging and detection systems.
Area of Science:
- Terahertz science and technology
- Metamaterials and nanophotonics
Background:
- Manipulating electromagnetic wave propagation is crucial for terahertz applications.
- Flat metasurfaces offer advantages like low profile and lightweight design for terahertz manipulation.
- Existing terahertz metasurfaces lack controllable focus scanning capabilities.
Purpose of the Study:
- To propose and experimentally demonstrate a flat reflective metasurface with controllable focal shift.
- To present the design principles for a focus scanning reflective metasurface.
- To investigate the focusing characteristics, including scanning capabilities and bandwidth.
Main Methods:
- Design and fabrication of a flat reflective metasurface.
- Experimental demonstration of controllable focal shift.
- Analysis of focusing characteristics and scanning performance.
Main Results:
- Successful demonstration of a flat reflective metasurface with controllable focal shift.
- Presentation of a design principle for focus scanning metasurfaces.
- Characterization of focus scanning along lines parallel or orthogonal to the metasurface with a large bandwidth.
Conclusions:
- The developed flat reflective metasurface offers controllable focus scanning in the terahertz band.
- This technology has significant potential for advancing terahertz imaging and detection systems.
- The metasurface's ability to scan focus dynamically opens new avenues for terahertz applications.
