Three-dimensional anisotropic metamaterials as triaxial optical inclinometers

Kriti Agarwal, Chao Liu, Daeha Joung, Hyeong Ryeol Park, Sang Hyun Oh, Jeong Hyun Cho

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10 Scopus citations


Split-ring resonators (SRRs) present an attractive avenue for the development of micro/nano scale inclinometers for applications like medical microbots, military hardware, and nanosatellite systems. However, the 180° isotropy of their two-dimensional structure presents a major hurdle. In this paper, we present the design of a three-dimensional (3D) anisotropic SRR functioning as a microscale inclinometer enabling it to remotely sense rotations from 0°to 360°along all three axes (X, Y, and Z), by employing the geometric property of a 3D structure. The completely polymeric composition of the cubic structure renders it transparent to the Terahertz (THz) light, providing a transmission response of the tilted SRRs patterned on its surface that is free of any distortion, coupling, and does not converge to a single point for two different angular positions. Fabrication, simulation, and measurement data have been presented to demonstrate the superior performance of the 3D micro devices.

Original languageEnglish (US)
Article number2680
JournalScientific reports
Issue number1
StatePublished - Dec 1 2017

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© 2017 The Author(s).


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