Bendable disordered metamaterials for broadband terahertz invisibility

Dong Liu, Yu Liang Hong, Ren Hao Fan, Hao Jing, Ru Wen Peng, Yun Lai, Xian Rong Huang, Cheng Sun, Mu Wang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)3552-3560
Number of pages9
JournalOptics Express
Volume28
Issue number3
DOIs
StatePublished - Feb 3 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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