Photonic Sensors, Volume. 10, Issue 3, 233(2020)
Right-Angle Shaped Elements as Dual-Band Metamaterial Absorber in Terahertz
Metamaterial absorbers display potential applications in the field of photonics and have been investigated extensively during the last decade. We propose a dual-band resonant metamaterial absorber with right-angle shaped elements (RAEs) in the terahertz range based on numerical simulations. The absorber remains insensitive to a wide range of incidence angles (0° – 70°) by showing a minimum absorbance of ~80% at 70°. Furthermore, the proposed absorber is highly independent on any state of polarization of the incidence electromagnetic wave due to the high absorbance, i.e., greater than 80%, recorded for the considered polarization states. To further comprehend the slight variations in absorbance as a function of change in the angle of incidence, the impedance of the structure has been critically examined. The metamaterial absorber is simple in design, and we provide a possible path of fabrication.
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Salman DANIEL, Prince BAWUAH. Right-Angle Shaped Elements as Dual-Band Metamaterial Absorber in Terahertz[J]. Photonic Sensors, 2020, 10(3): 233
Category: Regular
Received: May. 6, 2019
Accepted: Aug. 21, 2019
Published Online: Dec. 23, 2020
The Author Email: DANIEL Salman (salman.daniel@hotmail.com and pb612@cam.ac.uk)