Terahertz metamaterial-induced multiple transparency windows through bright-bright mode couplings

Author:

Wang Shuo1,Zhang Min2,Ju Anan1,Wang Bo1,Zhao Rong1,Kong Zebin1,Wang Kunshu1,Lian Pengfei3

Affiliation:

1. Shanghai Institute of Precision Measurement and Testing

2. Shandong University of Science and Technology

3. East China Normal University

Abstract

Metamaterials that offer optical control over multiple transparency windows have paved the way for advancements in terahertz (THz) modulation technology. In this paper, we have conducted a systematic investigation into the interaction between THz waves and “bright” split-ring resonators (SRRs). Through manipulation of the quantity and spatial arrangement of SRRs within metamaterial structures, we have successfully induced multiple transparency windows within the THz spectrum. Furthermore, we have explored the transmitted switching ratio of both the designed single transparency window and double resonance frequency bands as a function of the azimuthal angle of the THz wave. This work offers a general strategy for designing the number of electromagnetically induced transparency windows and holds the potential for realizing multichannel memories.

Publisher

Optica Publishing Group

Subject

Electronic, Optical and Magnetic Materials

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