Tunable Plasmonic Toroidal Terahertz Metamodulator
Burak Gerislioglu, Arash Ahmadivand, and Nezih Pala

TL;DR
This paper introduces a tunable plasmonic toroidal metamodulator operating in the terahertz range, demonstrating high efficiency and potential for advanced communication systems through numerical and experimental validation.
Contribution
It presents a novel design of a plasmonic metamodulator based on toroidal plasmonic structures with tunability and high efficiency, validated by both simulations and experiments.
Findings
High efficiency and tunability demonstrated
Strong potential for practical communication applications
Numerical and experimental validation of device response
Abstract
Optical modulators are essential parts of photonic circuits to encode electro-optical signals to the optical domain. Here, using arrays of multipixel toroidal plasmonic terahertz (THz) metamolecules, we developed a plasmonic metamodulator with high efficiency and tunability. Using the ultrasensitivity of the excited toroidal momentum to the incident THz beam power, we numerically and experimentally studied the plasmonic response of the proposed device. We showed that the proposed THz toroidal metamodulator have strong potential to be employed for practical advanced communication applications.
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