THz metamaterials based on phase-transition materials actuated MEMS

Zhixiang Huang; Weipeng Wu; Eric Herrmann; Ke Ma; Benjamin Jungfleisch; Xi Wang

doi:10.1117/12.2637314

3 October 2022 THz metamaterials based on phase-transition materials actuated MEMS

Zhixiang Huang, Weipeng Wu, Eric Herrmann, Ke Ma, Benjamin Jungfleisch, Xi Wang

Proceedings Volume PC12195, Metamaterials, Metadevices, and Metasystems 2022; PC121950J (2022) https://doi.org/10.1117/12.2637314
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

Dynamic THz modulations with adaptive metamaterials have been demonstrated. By utilizing the significant volume shrinkage during the phase-transition of phase-transition materials, a specially designed chiral structure performs drastically structural deformation. The rapid geometrical change modulating the polarization of the incident THz wave is fully designable, continuously tunable, and reversible. Large azimuth rotation angle and ellipticity angle changes have been observed. The metamaterials are actuated by either global heating or Joule heating, providing an efficient way to modulate THz waves with high modulation depth. This brings us a prosperous future of broader THz applications such as radar, communications, and imaging systems.

Conference Presentation

Citation Download Citation

Zhixiang Huang, Weipeng Wu, Eric Herrmann, Ke Ma, Benjamin Jungfleisch, and Xi Wang "THz metamaterials based on phase-transition materials actuated MEMS", Proc. SPIE PC12195, Metamaterials, Metadevices, and Metasystems 2022, PC121950J (3 October 2022); https://doi.org/10.1117/12.2637314

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