Details

Autor(en) / Beteiligte

• Han, Chen
• Zhong, Renbin
• Lv, Yilin
• Wang, Yiqing
• Yang, Long
• Ma, Anchen
• Liu, Shenggang

Titel

Independently tunable dual-band metamaterial absorber based on graphene at mid-infrared frequencies

Ist Teil von

• 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019, p.1-2

Ort / Verlag

IEEE

Erscheinungsjahr

2019

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• Despite the great achievement in understanding of the graphene-based metamaterial absorbers (GMAs), the limitations such as single narrowband absorption, low absorption peak and multiple bands that can't be independently tuned have not been completely overcome. This paper reports a dual-band absorber through etching two cascaded metallic resonators with different sizes in the unit cell of GMA. Two independently tunable absorption bands with absorption peaks greater than 99% are obtained at mid-infrared frequencies.