Terahertz nanofuse by a single nanowire-combined nanoantenna

Authors
Choi, GeunchangRoh, YeeunSeo, Minah
Issue Date
2023-06
Publisher
WALTER DE GRUYTER GMBH
Citation
Nanophotonics, v.12, no.13, pp.2241 - 2243
Abstract
We propose a terahertz nanofuse through irreversible modulations in transmitted terahertz using nanowires-combined nanoantenna structures. Semiconductor and metal nanowires show irreversible reconfiguration in their geometry at an incident field of 20 kV/cm. The concept can be explained by terahertz-field-induced ionization or electromigration. A strongly localized field due to geometrical conditions causes a floated metal nanowire from one side of a metal nanoantenna to touch the opposite side, bridging two separate metal plates and creating a junction. For the bridged nanoantenna, the highly enhanced field induced the breaking of the connection across the metal sides of a nanoantenna. In the bridging and breaking cases, permanent transformation occurs in opposite structural forms. It encompasses a potential application as an optical fuse to protect sensitive terahertz devices under excessive field focus.
Keywords
METAMATERIAL; GENERATION; nanofuse system; nanowire; terahertz metamaterials
ISSN
2192-8606
URI
https://pubs.kist.re.kr/handle/201004/113718
DOI
10.1515/nanoph-2022-0768
Appears in Collections:
KIST Article > 2023
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