Vol.:(0123456789) Optical and Quantum Electronics (2020) 52:365 https://doi.org/10.1007/s11082-020-02483-6 1 3 New compact of absorber thermal surface A. Nagy Asl 1  · Bedir Yousif 2  · Mahmoud Alzalabani 1 Received: 12 December 2019 / Accepted: 16 July 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020 Abstract Frequency-selective heat infrared (IR) detectors are promising for numerous new apps such as solar cell detection, gas analysis, multi-color imaging, multi-channel detector, recogni- tion of artifcial objects in a natural setting, but these features involve extra flters which lead to elevated costs. Plasmonic metamaterial absorbers (PMAs) can impart frequency selectivity to standard heat, IR detectors merely by regulating the absorber surface geom- etry to generate surface plasmon resonance at the desired frequency. We present a nanoan- tenna-based mid-infrared absorber for heat infrared detectors. Our structure uses a portion of the noble metal used in standard absorbers and is only one layer thick, which enables incredibly tiny thermal conductivity leading to possibly very low thermal detector noise. Simulation results show that the proposed nanoantennas can achieve a harvesting efciency of 40% at a frequency of 150 THz where the antenna input impedance is matched to that of fabricated rectifying devices. Achieve maximum bandwidth Absorber from 100 to 200 THz for application purposes energy harvesting sensor. Keywords Nano antenna · Plasmonic metamaterial · Optical absorption  · Metal characteristics 1 Introduction Plasmonic perfect absorbers (PPAs) have been received great attention because the waves absorbed and enhanced in the plasmonic nanostructures have been used promisingly in the feld of nanophotonics (Luo et al. 2019; Chau et al. 2010; Liu et al. 2016, 2019a, b, c; Rhee et al. 2014; Shinpei and Masafumi 2018; Gao et al. 2019; Li et al. 2019). In metal nano- structures which can be exploited to execute PPAs by suitable design (Hsieh et al. 2016; Liu et al. 2015a, b, 2016, 2017, 2018; Chen et al. 2019; Huang et al. 2017), nature Ohmic * A. Nagy Asl nagyahmed142@yahoo.com Bedir Yousif bedir.yousif@gmail.com Mahmoud Alzalabani mmalzalabani@yahoo.com 1 ECE-Faculty of Engineering, Mansoura University, Mansoura, Dakahalia, Egypt 2 ECE-Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, Egypt