Investigation of tunable fishnet metamaterials for optimal phase shift effect

Chi-Leung Tsui; Wei-Chih Wang

doi:10.1117/12.2613806

7 March 2022 Investigation of tunable fishnet metamaterials for optimal phase shift effect

Chi-Leung Tsui, Wei-Chih Wang

Author Affiliations +

Proceedings Volume 12000, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XV; 120000F (2022) https://doi.org/10.1117/12.2613806
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

In developing a tunable fishnet metamaterial (TFMM) for interacting with terahertz radiation, various geometries of the basic unit cell are investigated for unique performance characteristics and optimal phase shift effect. Being able to generate a large phase shift is critical in creating a device for wave manipulation. In this paper, the study of two different unit cell geometry designs are presented. Simulation studies are performed on the designs prior to device fabrication to identify the characteristics of the devices. Each of the designs shows different characteristic in the study, such as displaying frequency response that is independent of polarization and creating large phase shift to the incident beam when the device is tuned. Experiments are performed on the fabricated unit cell arrays and the characteristics of the devices are verified.

Conference Presentation

Citation Download Citation

Chi-Leung Tsui and Wei-Chih Wang "Investigation of tunable fishnet metamaterials for optimal phase shift effect", Proc. SPIE 12000, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XV, 120000F (7 March 2022); https://doi.org/10.1117/12.2613806

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