LiTaO3 microcubes based metamaterial perfect absorber

Nishant Shankhwar; Reena Dalal; Yogita Kalra; Ravindra Kumar Sinha

doi:10.1117/12.2273259

24 August 2017 LiTaO₃ microcubes based metamaterial perfect absorber

Nishant Shankhwar, Reena Dalal, Yogita Kalra, Ravindra Kumar Sinha

Proceedings Volume 10343, Metamaterials, Metadevices, and Metasystems 2017; 103432L (2017) https://doi.org/10.1117/12.2273259
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States

Abstract

In this paper we present the design of a metamaterial perfect absorber (MPA) made up of an array of dielectric microcubes grown on a metallic substrate. The fundamental principle of operation of the proposed structure is Mie Resonance occurring in high permittivity particles in combination with the negative permittivity provided by the metallic substrate. The proposed structure is simpler than all other existing metamaterial perfect absorber structures. The geometrical parameters of the structure are between 1 μm and 10 μm, hence it is not supposed to pose any challenge during fabrication. Moreover, the structure has been designed for terahertz spectrum which is the most unexplored part of the spectrum.

Citation Download Citation

Nishant Shankhwar, Reena Dalal, Yogita Kalra, and Ravindra Kumar Sinha "LiTaO₃ microcubes based metamaterial perfect absorber", Proc. SPIE 10343, Metamaterials, Metadevices, and Metasystems 2017, 103432L (24 August 2017); https://doi.org/10.1117/12.2273259

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