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Updated: Feb 17, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Study of THz-Plasmon hybridization of a loop Yagi-Uda absorber
Arnab Pattanayak1, Sandipta Roy2, Goutam Rana3
1Centre for Research in Nanotechnology and Science, IIT Bombay, Powai, 400076, Mumbai, India. arnab1134@gmail.com.
Abstract:
In this article we present a three-dimensional loop Yagi-Uda array for efficient, polarization independent and directional absorption of THz radiation over a narrow frequency range (f0 = 0.657 THz & Q factor = 7.5). Unit cell of the array consists of three vertically stacked gold micro rings separated from each other by 30 µm thick SU-8 layers. The proposed array also exhibits a filtering response in its transmittance spectrum. The characteristics are explained by plasmon hybridization method. The transmission, reflection and absorption spectra of the structure are measured and they show a good agreement with corresponding simulated results.
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