Monday, July 2, 2018

Abstract-Terahertz rare-earth orthoferrite metamaterials by 3-D direct writing technology

X. X. Zeng, R. Wang, X. Q. Xi, B. Li, and J. Zhou

Terahertz (THz) radiation excites electronic and optical modes of many materials, and controlling interaction of these materials with THz pulses provides a fascinating avenue to achieve unprecedented functionalities in return. Here, woodpile-structured rare-earth orthoferrite metamaterials built with 3-D direct ink writing technology are proposed and experimentally demonstrated. Polarization-independent THz refraction and switching of resonances by varying the number of layers in the structure, as well as the structural parameters and specimen support angle are achieved. Such all-rare-earth-orthoferrite dielectric metamaterials are easy to fabricate and can be very promising in developing efficient and low cost THz functional metadevices.
© 2018 Optical Society of America under the terms of the OSA Open Access Publishing 

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