Abstract
Terahertz metamaterial absorbers are the latest developments that have tremendous applications in terahertz spectroscopy and terahertz imaging. Especially, the research progressed in the direction of designing multiband absorbers. In this work, a polarization-insensitive metamaterial absorber capable of offering absorption in eight bands is proposed. The unit cell of the absorber consists of two orthogonal elliptical ring resonators (ERRs) that are optimally designed to offer maximum absorption in eight bands. The absorption percentage provided by the structure are 89.46% at 0.63 THz, 99.22% at 1.55 THz, 78.02% at 1.89 THz, 99.27% at 2.33 THz, 99.67% at 2.65 THz, 98.67% at 2.91 THz, 99.64% at 3.22 THz, and 88.02% at 3.42 THz. The absorption characteristics were independent of the polarization angle and thus, the structure is insensitive to variations in polarization angle. This is the first work that reports the design of an octaband terahertz absorber and can find significant use in practical devices.
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References
Veselago VG (1968) The electrodynamics of substances with simultaneously negative values of ε and μ. Sov Phys Uspekhi 10(4):509–514
Shamonina E, Solymar L (2007) Metamaterials: how the subject started. Metamaterials 1:12–18
Smith DR, Padilla WJ, Vier DC, Nemat-Nasser SC, Schultz S (2000) Composite medium with simultaneously negative permeability and permittivity. Phys Rev Lett 84(18):4184–4187
Landy NI, Sajuyigbe S, Mock JJ, Smith DR, Padilla WJ (2008) “Perfect metamaterial absorber”, Phys Rev Lett, 100
Ramakrishna SA, Grzegorczyk TM (2008) Physics and application of negative refractive index materials. CRC Press, Boca Raton
Tonouchi M (2007) Cutting-edge terahertz technology. Nat Photonics 1(2):97–105
El-Aasser MA (2014) Design optimization of nanostrip metamaterial perfect absorbers. J Nanophotonics 8(1):83–85
Siegel PH (2002) Terahertz technology. Microw Theory Tech IEEE Trans 50(3):910–928
Yen TJ et al (2004) Terahertz magnetic response from artificial materials. Science 303:1494–1496
Rhee JY, Yoo YJ, Kim KW, Kim YJ, Lee YP (2014) Metamaterial-based perfect absorbers. Journal of Electromagnetic Waves and Applications 28(13):1541–1580
El-Aasser MA, Mahmoud SA (2019) Spectral properties of plasmonic vertical nano-gap array resonators. J Nanoelectron Optoelectron 14(3):420–424
El-Aasser MA, Mahmoud SA (2017) Spectral response of Fabry-Pérot plasmonic optical resonators. Optoelectron Adv Mater Rapid Commun 11:398–404
Tao H, Landy NI, Bingham CM, Zhang X, Averitt RD, Padilla WJ (2008) A metamaterial absorber for the terahertz regime: design fabrication and characterization. Opt Express 16:7181–7188
Tao H, Bingham CM, Pilon D, Fan K, Strikwerda AC, Shrekenhamer D, Padilla WJ, Zhang X, Averitt RD (2010) A dual band terahertz metamaterial absorber. J Phys D 43:225102
Wang BX, Wang GZ, Wang LL (2016) Design of a novel dual-band terahertz metamaterial absorber. Plasmonics 11(2):523–530
Shan Y, Chen L, Shi C, Cheng Z, Zang X, Xu B, Zhu Y (2015) Ultrathin flexible dual band terahertz absorber. Opt Commun 350:63–70
Shen X, Cui TJ, Zhao J, Ma HF, Jiang WX, Li H (2011) Polarization-independent wide-angle triple-band metamaterial absorber. Opt Express 19:9401–9407
Wang BX, Wang GZ, Sang T (2016) Simple design of novel triple band terahertz metamaterial absorber for sensing application. J Phys D Appl Phys 49:165307–165313
Shen X, Yang Y, Zang Y, Gu J, Han J, Zhang W, Jun Cui T (2012) Triple-band terahertz metamaterial absorber: design, experiment, and physical interpretation. Appl Phys Lett 101:154102
Liu S, Zhuge J, Ma S, Chen H, Bao D, He Q, Zhou L, Cui TJ (2015) A bi-layered quad-band metamaterial absorber at terahertz frequencies. J Appl Phys 118:245304
Wang BX (2017) Quad-band terahertz metamaterial absorber based on the combining of the dipole and quadrupole resonances of two SRRs. IEEE J Sel Top Quantum Electron 23(4):1–7
Meng HY, Wang LL, Zhai X, Liu GD, Xia SX (2018) A simple design of a bulti-band terahertz metamaterial absorber based on periodic square metallic layer with T-shaped gap. Plasmonics 13(1):269–274
Wang BX, Wang GZ (2016) Quad-band terahertz absorber based on a simple design of metamaterial resonator. IEEE Photonics J 8(6):1–8
Appasani B et al. (2018) “A simple multi-band metamaterial absorber with combined polarization sensitive and polarization insensitive characteristics for terahertz applications,” Plasmonics, pp. 1–6
Mohanty A, Acharya OP, Appasani B, Mohapatra SK (2018) A multi-band terahertz metamaterial absorber based on a Π and U-shaped structure. Photonics Nanostruct 32:74–80
Wang GZ, Wang BX (2015) Five-band terahertz metamaterial absorber based on a four-gap comb resonator. J Lightwave Technol 33(24):5151–5156
Wang BX, Wang GZ, Sang T, Wang LL (2017) Six-band terahertz metamaterial absorber based on the combination of multiple-order responses of metallic patches in a dual-layer stacked resonance structure. Sci Rep 7:41373
Hu D, Wang HY, Zhu Q f (2016) Design of six-band terahertz perfect absorber using a simple U-shaped closed-ring resonator. IEEE Photonics J 8(2):1–8
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Verma, V.K., Mishra, S.K., Kaushal, K.K. et al. An Octaband Polarization Insensitive Terahertz Metamaterial Absorber Using Orthogonal Elliptical Ring Resonators. Plasmonics 15, 75–81 (2020). https://doi.org/10.1007/s11468-019-01010-y
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DOI: https://doi.org/10.1007/s11468-019-01010-y