Angularly tunable perfect absorption in graphene-mushroom hybrid structure for all angles

Zhen Xue, Shuomin Zhong*, Xuchen Wang, Yungui Ma

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)
71 Downloads (Pure)

Abstract

In this work, the authors propose a graphene-based tunable perfect metamaterial absorber at microwaves that can achieve perfect absorption at all angles. This is realized by stacking an unpatterned graphene sandwich structure and a dielectric layer on top of a mushroom-type high impedance surface whose resonant frequency is stable for all angles of incidence. A perfect-absorption-angle tunable absorber working at TM polarization is designed and realized, achieving perfect absorption covering a wide range of angles from normal to grazing incidence at the same frequency when the impedance of graphene is modulated by different bias voltages. The design concept of integrating different tunable materials and meta-structures opens up promising possibilities for wave manipulation with applications in smart and multifunctional electromagnetic devices.

Original languageEnglish
Article number161103
Number of pages7
JournalApplied Physics Letters
Volume118
Issue number16
DOIs
Publication statusPublished - 19 Apr 2021
MoE publication typeA1 Journal article-refereed

Fingerprint

Dive into the research topics of 'Angularly tunable perfect absorption in graphene-mushroom hybrid structure for all angles'. Together they form a unique fingerprint.

Cite this