Isotropic infrared metamaterials (presentation video)

Takuo Tanaka; Atsushi Ishikawa; Che-Chin Chen; Din Ping Tsai

doi:10.1117/12.2063200

17 August 2014 Isotropic infrared metamaterials (presentation video)

Takuo Tanaka, Atsushi Ishikawa, Che-Chin Chen, Din Ping Tsai

Proceedings Volume 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII; 91630L (2014) https://doi.org/10.1117/12.2063200
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

We present the first experimental realization of an isotropic IR metamaterial using fourfold-symmetric 3D configuration of metallic nanostructures. Mass-productive formation of the assembled 3D stereostructures was achieved by a newly-developed metal-stress driven self-folding method. Systematic transmission spectroscopy demonstrated unambiguous isotropic characteristics for any lateral rotation, polarization, and incident angle up to 40º. The corresponding numerical simulations well re-produced the experimental results, revealing that the interplay of electric and magnetic interactions of the 3D metallic nanostructures plays a crucial role for the bi-anisotropic responses. Our results demonstrated a promising method to manufacture highly symmetric metamaterials, leading to isotropic optical responses.

Citation Download Citation

Takuo Tanaka, Atsushi Ishikawa, Che-Chin Chen, and Din Ping Tsai "Isotropic infrared metamaterials (presentation video)", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91630L (17 August 2014); https://doi.org/10.1117/12.2063200

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