TY - GEN
T1 - Seven-Band Complete Graphene Absorber Assisted by Metamaterial Concept for Optoelectronics and Engineering Technologies
AU - Rafighirani, Yousef
AU - Javidan, Javad
AU - Heidarzadeh, Hamid
AU - Abdollahvand, Mousa
AU - Alibakhshikenari, Mohammad
AU - Liveri, Patrizia
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper presents a numerical study of a metamaterial absorber combining two fundamental methods to generate the multi-frequency bands absorption. These methods are (i) creating a cut on the surface of graphene and (ii) realizing a hole in silicon dioxide. The proposed structure consists of three layers including a cut graphene layer, and a gold layer on a silicon oxide dielectric layer with a cube-shaped cavity in the center. Its seven resonance absorption peaks occurred at 6.08 THz, 6.4 THz, 7.1 THz, 7.32 THz, 7.92 THz, 9.21 THz, and 9.66 THz are 91.2%, 99.5%, 97.7%, 94.3%, 97.8%, 91.1%, and 97.7%, respectively. The results demonstrate that the absorption value over all seven bands is above 90% making the proposed multi-layers absorber potentially applicable for many applications in optoelectronics and engineering technologies.
AB - This paper presents a numerical study of a metamaterial absorber combining two fundamental methods to generate the multi-frequency bands absorption. These methods are (i) creating a cut on the surface of graphene and (ii) realizing a hole in silicon dioxide. The proposed structure consists of three layers including a cut graphene layer, and a gold layer on a silicon oxide dielectric layer with a cube-shaped cavity in the center. Its seven resonance absorption peaks occurred at 6.08 THz, 6.4 THz, 7.1 THz, 7.32 THz, 7.92 THz, 9.21 THz, and 9.66 THz are 91.2%, 99.5%, 97.7%, 94.3%, 97.8%, 91.1%, and 97.7%, respectively. The results demonstrate that the absorption value over all seven bands is above 90% making the proposed multi-layers absorber potentially applicable for many applications in optoelectronics and engineering technologies.
KW - cube-shaped cavity
KW - cut graphene layer
KW - metamaterial
KW - Multi-frequency absorption
KW - multilayers absorber
KW - optoelectronics and engineering technologies
UR - https://www.scopus.com/pages/publications/85210894362
U2 - 10.1109/UCMMT62975.2024.10737840
DO - 10.1109/UCMMT62975.2024.10737840
M3 - Conference Publication
AN - SCOPUS:85210894362
T3 - 2024 17th United Conference on Millemetre Waves and Terahertz Technologies, UCMMT 2024
SP - 30
EP - 33
BT - 2024 17th United Conference on Millemetre Waves and Terahertz Technologies, UCMMT 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th United Conference on Millemetre Waves and Terahertz Technologies, UCMMT 2024
Y2 - 21 August 2024 through 23 August 2024
ER -