Title: Bendable disordered metamaterials for broadband terahertz invisibility

Journal Article · · Optics Express
DOI: https://doi.org/10.1364/oe.384764 · OSTI ID:1755942
 [1];  [1]; ORCiD logo [1];  [1];  [1];  [1];  [2];  [3];  [1]
  1. Nanjing Univ. (China)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States)
+ Show Author Affiliations

We experimentally demonstrate a bendable cloaking structure composed of obliquely stacked planar metallic shells that individually enclose the objects to be hidden. The ensemble of shells acts as a disordered oblique grating capable of bending along a curved structure and exhibits broadband invisibility from 0.2 to 1.0 THz. Hiding cloaked objects sized hundreds of microns could prevent the detection of certain powders that are sensitive to terahertz waves; such a cloaking structure can also be considered as a shape-changing passageway that transfers the electromagnetic waves without interfering with them. Our approach provides a unique way to achieve broadband electromagnetic invisibility.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
Ministry of Science and Technology of the Republic of China (MOST); National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1755942
Journal Information:
Optics Express, Journal Name: Optics Express Journal Issue: 3 Vol. 28; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

References (38)

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Full-Polarization 3D Metasurface Cloak with Preserved Amplitude and Phase journal May 2016
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Diffusive-light invisibility cloak for transient illumination journal December 2016
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Invisibility cloaking using pseudomagnetic field for photon journal February 2017
Achieving transparency with plasmonic and metamaterial coatings journal July 2005
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Complementary Media Invisibility Cloak that Cloaks Objects at a Distance Outside the Cloaking Shell journal March 2009
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Plasmonic brewster angle: Broadband extraordinary transmission through optical gratings
  • Alu, A.; D'Aguanno, G.; Mattiucci, N.
  • 12th European Quantum Electronics Conference CLEO EUROPE/EQEC, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) https://doi.org/10.1109/cleoe.2011.5943650
conference May 2011
Controlling Electromagnetic Fields journal June 2006
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Broadband Ground-Plane Cloak journal January 2009
Terahertz Metamaterials for Linear Polarization Conversion and Anomalous Refraction journal May 2013
Invisibility cloaking in a diffusive light scattering medium journal June 2014
An ultrathin invisibility skin cloak for visible light journal September 2015
Broadband transparency achieved with the stacked metallic multi-layers perforated with coaxial annular apertures journal January 2011
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A complementary media invisibility cloak that can cloak objects at a distance outside the cloaking shell text January 2008
Hiding a Realistic Object Using a Broadband Terahertz Invisibility Cloak preprint January 2011

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