TY - GEN
T1 - Graphene hypersurface for manipulation of THz waves
AU - Dash, Sasmita
AU - Liaskos, Christos
AU - Akyildiz, Ian F.
AU - Pitsillides, Andreas
N1 - Publisher Copyright:
© 2020 Trans Tech Publications Ltd, Switzerland.
PY - 2020
Y1 - 2020
N2 - In this work, we investigated graphene hypersurface (HSF) for the manipulation of THz waves. The graphene HSF structure is consists of a periodic array of graphene unit cells deposited on silicon substrate and terminated by a metallic ground plane. The performance of the proposed HSF is numerically analyzed. Electromagnetic parameters of HSF such as permeability, permittivity, and impedance are studied. The proposed graphene HSF has active control over absorption, reflection, and transmission of THz waves. The graphene HSF provides perfect absorption, zero reflection and zero transmission at resonance. Moreover, the graphene HSF structure has the advantage of anomalous reflection and frequency reconfiguration. Incident waves can be reflected in the desired direction, depending on the phase gradient of the HSF and the perfect absorption is maintained at all reconfigurable frequencies upon reconfiguration. The results reveal the effectiveness of the graphene HSF for the manipulation of THz waves.
AB - In this work, we investigated graphene hypersurface (HSF) for the manipulation of THz waves. The graphene HSF structure is consists of a periodic array of graphene unit cells deposited on silicon substrate and terminated by a metallic ground plane. The performance of the proposed HSF is numerically analyzed. Electromagnetic parameters of HSF such as permeability, permittivity, and impedance are studied. The proposed graphene HSF has active control over absorption, reflection, and transmission of THz waves. The graphene HSF provides perfect absorption, zero reflection and zero transmission at resonance. Moreover, the graphene HSF structure has the advantage of anomalous reflection and frequency reconfiguration. Incident waves can be reflected in the desired direction, depending on the phase gradient of the HSF and the perfect absorption is maintained at all reconfigurable frequencies upon reconfiguration. The results reveal the effectiveness of the graphene HSF for the manipulation of THz waves.
KW - Absorption
KW - Anomalous reflection
KW - Graphene
KW - Metasurface
KW - Reconfiguration
KW - THz wave
UR - http://www.scopus.com/inward/record.url?scp=85091149749&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.1009.63
DO - 10.4028/www.scientific.net/MSF.1009.63
M3 - Conference contribution
AN - SCOPUS:85091149749
SN - 9783035716887
T3 - Materials Science Forum
SP - 63
EP - 68
BT - Material Engineering and Manufacturing III
A2 - Omatsu, Takashige
A2 - Sun, Hongqi
PB - Trans Tech Publications Ltd
T2 - 4th International Conference on Material Engineering and Manufacturing, ICMEM 2020, the 3rd International Conference on Materials Design and Applications, ICMDA 2020, and the 2nd International Conference on Biomacromolecules and Biomimetic Materials, ICBBM 2020
Y2 - 10 April 2020 through 13 April 2020
ER -