Dynamic Absorption Enhancement and Equivalent Resonant Circuit Modeling of Tunable Graphene-Metal Hybrid Antenna

• Published in: Sensors (Basel, Switzerland) Vol. 20; no. 11; p. 3187
• Main Authors: Ullah, Zaka, Nawi, Illani, Witjaksono, Gunawan, Tansu, Nelson, Khattak, Muhammad Irfan, Junaid, Muhammad, Siddiqui, Muhammad Aadil, Magsi, Saeed Ahmed
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 04.06.2020; MDPI
• Subjects: Absorption spectra; Aluminum oxide; Antennas; Chemical vapor deposition; Computer simulation; Design; Efficiency; Equivalent circuits; Far infrared radiation; Graphene; Infrared imaging; Investigations; Mathematical models; Metals; Multilayers; optical antenna; Optical components; Optoelectronic devices; Parameters; Parametric analysis; Performance enhancement; plasmonic; Plasmonics; Polymethyl methacrylate; Radiators; Sandwich structures; Silicon substrates; surface plasmons; terahertz; tunability

Plasmonic antennas are attractive optical components of the optoelectronic devices, operating in the far-infrared regime for sensing and imaging applications. However, low optical absorption hinders its potential applications, and their performance is limited due to fixed resonance frequency. In thi...