Multiband Omnidirectional Invisibility Cloak
Abstract: Transformation optics (TO) provides a powerful tool to manipulate electromagnetic waves, enabling the design of invisibility cloaks, which can render objects invisible. Despite many years of research, however, invisibility cloaks experimentally realized thus far can only operate at a single frequency. The narrow bandwidth significantly restricts the practical applications of invisibility cloaks and other TO devices. Here, a general design strategy is proposed to realize a multiband anisotropic metamaterial characterized by two principal permittivity components, i.e., one infinite and the other spatially gradient. Through a proper transformation and combination of such metamaterials, an omnidirectional invisibility cloak is experimentally implemented, which is impedance‐matched to free space at multiple frequencies. Both far‐field numerical simulations and near‐field experimental mappings confirm that this cloak can successfully suppress scattering from multiple large‐scale objects simultaneously at 5 and 10 GHz. The design strategy and corresponding practical realization bring multiband transformation optical devices one step closer to reality.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
Multiband Omnidirectional Invisibility Cloak ; day:20 ; month:05 ; year:2024 ; extent:8
Advanced science ; (20.05.2024) (gesamt 8)
- Urheber
-
Hu, Xiaojun
Luo, Yu
Wang, Jie
Tang, Jingxin
Gao, Yuan
Ren, Jianhua
Yu, Huilong
Zhang, Jingjing
Ye, Dexin
- DOI
-
10.1002/advs.202401295
- URN
-
urn:nbn:de:101:1-2405211407513.081997066092
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
14.08.2025, 10:48 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Hu, Xiaojun
- Luo, Yu
- Wang, Jie
- Tang, Jingxin
- Gao, Yuan
- Ren, Jianhua
- Yu, Huilong
- Zhang, Jingjing
- Ye, Dexin
Ähnliche Objekte (12)
Polarization-independent Spatial Kramers-Kronig medium for omnidirectional reflectionless absorption of unpolarized light
Dynamic switching from coherent perfect absorption to parametric amplification in a nonlinear spoof plasmonic waveguide
Backward Phase Matching for Second Harmonic Generation in Negative‐Index Conformal Surface Plasmonic Metamaterials
Reconfigurable Parametric Amplifications of Spoof Surface Plasmons
Communication in asymmetric group competition over public goods
Aging in cyberspace: Internet use and quality of life of older Chinese migrants
Bayesian inference for continuous-time hidden Markov models with an unknown number of states
Communication & competition
An investigation of individual preferences: Consistency across incentives and stability over time
Inefficient markets
How groups reach agreement in risky choices: an experiment
Decatungstate-catalyzed radical disulfuration through direct C-H functionalization for the preparation of unsymmetrical disulfides
Polarization-independent Spatial Kramers-Kronig medium for omnidirectional reflectionless absorption of unpolarized light
Dynamic switching from coherent perfect absorption to parametric amplification in a nonlinear spoof plasmonic waveguide
Backward Phase Matching for Second Harmonic Generation in Negative‐Index Conformal Surface Plasmonic Metamaterials
Reconfigurable Parametric Amplifications of Spoof Surface Plasmons
Communication in asymmetric group competition over public goods
Aging in cyberspace: Internet use and quality of life of older Chinese migrants
Bayesian inference for continuous-time hidden Markov models with an unknown number of states
Communication & competition
An investigation of individual preferences: Consistency across incentives and stability over time
Inefficient markets
How groups reach agreement in risky choices: an experiment
Decatungstate-catalyzed radical disulfuration through direct C-H functionalization for the preparation of unsymmetrical disulfides
Polarization-independent Spatial Kramers-Kronig medium for omnidirectional reflectionless absorption of unpolarized light
Dynamic switching from coherent perfect absorption to parametric amplification in a nonlinear spoof plasmonic waveguide
Backward Phase Matching for Second Harmonic Generation in Negative‐Index Conformal Surface Plasmonic Metamaterials
Reconfigurable Parametric Amplifications of Spoof Surface Plasmons
Communication in asymmetric group competition over public goods
Aging in cyberspace: Internet use and quality of life of older Chinese migrants
Bayesian inference for continuous-time hidden Markov models with an unknown number of states
Communication & competition
An investigation of individual preferences: Consistency across incentives and stability over time
Inefficient markets
How groups reach agreement in risky choices: an experiment