High-resolution electrohydrodynamic jet printing for the direct fabrication of 3D multilayer terahertz metamaterial of high refractive index

Yudistira, Hadi Teguh, Tenggara, Ayodya Pradhipta, Oh, Sang Soon ORCID: https://orcid.org/0000-0003-3093-7016, Nguyen, VuDat, Choi, Muhan, Choi, Choon-Gi and Byun, Doyoung 2015. High-resolution electrohydrodynamic jet printing for the direct fabrication of 3D multilayer terahertz metamaterial of high refractive index. Journal of Micromechanics and Microengineering 25 (4) , 045006. 10.1088/0960-1317/25/4/045006

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Abstract

The fabrication of 3D metamaterials, such as multilayer structures, is of great interest in practical applications of the metamaterial. Here we present an electrohydrodynamic jet printing technique as a direct fabrication method of 3D multilayer metamaterial. By alignment of the nozzle movement, we could fabricate multiple layers of the metamaterial. Controlling an electrical pulse to make droplets on-demand, we fabricated a high refractive index metamaterial and compared the optical performances of a single layer and multiple layers, with 10 µm width and 5 µm gap of I-shaped meta-atoms on the polyimide substrate. The peak refractive index was 25.7 at 0.46 THz for a four-layer metamaterial.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	IOP Publishing
ISSN:	0960-1317
Date of Acceptance:	15 January 2015
Last Modified:	03 Nov 2022 09:52
URI:	https://orca.cardiff.ac.uk/id/eprint/106280

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