Related Experiment Video
Updated: Jul 4, 2026
13:44
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Two-dimensional metamaterial structure exhibiting reduced visibility at 500 nm
I I Smolyaninov1, Y J Hung, C C Davis
1Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA.
Optics Letters
|June 17, 2008
Summary
Researchers developed a 2D reduced visibility structure for nonmagnetic cloaking in the visible light spectrum. This metamaterial advances the experimental realization of cloaking devices beyond microwave frequencies.
Area of Science:
- Optics and Photonics
- Materials Science
- Electromagnetism
Background:
- Metamaterials offer unique control over electromagnetic wave propagation.
- Theoretical designs for electromagnetic cloaks exist, with prior experimental work in microwave frequencies.
- Achieving cloaking in the visible frequency range remains a significant challenge.
Purpose of the Study:
- To experimentally demonstrate a two-dimensional reduced visibility structure.
- To approximate the necessary dielectric permittivity for nonmagnetic cloaking in the visible spectrum.
- To advance the practical realization of optical cloaking technologies.
Main Methods:
- Fabrication of a two-dimensional reduced visibility structure using metamaterial principles.
- Approximation of the radial component of dielectric permittivity.
- Testing and characterization within the visible frequency range.
Main Results:
- Successful experimental realization of a 2D reduced visibility structure.
- Demonstration of an approximate dielectric permittivity distribution suitable for nonmagnetic cloaking.
- Validation of the approach for visible light frequencies.
Conclusions:
- The study presents a significant step towards achieving nonmagnetic cloaking in the visible frequency range.
- The developed metamaterial structure provides a viable pathway for future optical cloaking applications.
- Experimental validation confirms the potential of metamaterials for advanced optical control.
