5 August 2021 Fabrication of terahertz metamaterials using patterned laser lift-off with low-viscosity silver nanopaste
Lingling Chen, Jianjun Liu, Xingye Zhang, Yong Du, Zhi Hong
Author Affiliations +
Abstract

A patterned laser lift-off technique is adopted for fabricating terahertz (THz) metamaterials with micrometer precision. A shaped UV laser pulse is used to remove low-viscosity silver nanopaste from a quartz substrate. Various types of metal THz metamaterials, including gradient metamaterials, can be obtained flexibly by movement of the sample and programming of the shaped beam. Two THz metamaterials, which are based on bridged double split ring resonator and its complementary resonator, respectively, are fabricated and tested. The results show that patterned laser lift-off based on a low-viscosity silver nanopaste film can supply a low-cost and easy-operation route in the fabrication of various THz metamaterials.

© 2021 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2021/$28.00 © 2021 SPIE
Lingling Chen, Jianjun Liu, Xingye Zhang, Yong Du, and Zhi Hong "Fabrication of terahertz metamaterials using patterned laser lift-off with low-viscosity silver nanopaste," Optical Engineering 60(8), 087101 (5 August 2021). https://doi.org/10.1117/1.OE.60.8.087101
Received: 18 May 2021; Accepted: 22 July 2021; Published: 5 August 2021
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KEYWORDS
Metamaterials

Terahertz radiation

Silver

Laser liftoff

Resonators

Metals

Laser energy

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