TY - JOUR
T1 - Graphene metascreen for designing compact infrared absorbers with enhanced bandwidth
AU - Chen, Pai-Yen
AU - Farhat, Mohamed
AU - Bagci, Hakan
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: PYC would like to thank the KAUST Winter Enrichment Program (WEP). This work was partially funded by King Abdulaziz City for Science and Technology's TIC (Technology Innovation Center) for Solid-state Lighting at KAUST.
PY - 2015/3/31
Y1 - 2015/3/31
N2 - We propose a compact, wideband terahertz and infrared absorber, comprising a patterned graphene sheet on a thin metal-backed dielectric slab. This graphene-based nanostructure can achieve a low or negative effective permeability, necessary for realizing the perfect absorption. The dual-reactive property found in both the plasmonic graphene sheet and the grounded highpermittivity slab introduces extra poles into the equivalent circuit model of the system, thereby resulting in a dual-band or broadband magnetic resonance that enhances the absorption bandwidth. More interestingly, the two-dimensional patterned graphene sheet significantly simplifies the design and fabrication processes for achieving resonant magnetic response, and allows the frequency-reconfigurable operation via electrostatic gating.
AB - We propose a compact, wideband terahertz and infrared absorber, comprising a patterned graphene sheet on a thin metal-backed dielectric slab. This graphene-based nanostructure can achieve a low or negative effective permeability, necessary for realizing the perfect absorption. The dual-reactive property found in both the plasmonic graphene sheet and the grounded highpermittivity slab introduces extra poles into the equivalent circuit model of the system, thereby resulting in a dual-band or broadband magnetic resonance that enhances the absorption bandwidth. More interestingly, the two-dimensional patterned graphene sheet significantly simplifies the design and fabrication processes for achieving resonant magnetic response, and allows the frequency-reconfigurable operation via electrostatic gating.
UR - http://hdl.handle.net/10754/575647
UR - https://iopscience.iop.org/article/10.1088/0957-4484/26/16/164002
UR - http://www.scopus.com/inward/record.url?scp=84961291504&partnerID=8YFLogxK
U2 - 10.1088/0957-4484/26/16/164002
DO - 10.1088/0957-4484/26/16/164002
M3 - Article
SN - 0957-4484
VL - 26
SP - 164002
JO - Nanotechnology
JF - Nanotechnology
IS - 16
ER -