Terahertz nanofuse by a single nanowire-combined nanoantenna

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...

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Main Authors: Choi Geunchang, Roh Yeeun, Seo Minah
Format: Article
Language:English
Published: De Gruyter 2023-03-01
Series:Nanophotonics
Subjects:
Online Access:https://doi.org/10.1515/nanoph-2022-0768
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author Choi Geunchang
Roh Yeeun
Seo Minah
author_facet Choi Geunchang
Roh Yeeun
Seo Minah
author_sort Choi Geunchang
collection DOAJ
description 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.
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spelling doaj.art-c67a818558b342678e250a2e0e1540902023-07-03T10:20:09ZengDe GruyterNanophotonics2192-86142023-03-0112132545255110.1515/nanoph-2022-0768Terahertz nanofuse by a single nanowire-combined nanoantennaChoi Geunchang0Roh Yeeun1Seo Minah2School of Electrical and Electronics Engineering, Chung-Ang University, Seoul, 06974, Republic of KoreaSensor System Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of KoreaSensor System Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of KoreaWe 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.https://doi.org/10.1515/nanoph-2022-0768nanofuse systemnanowireterahertz metamaterials
spellingShingle Choi Geunchang
Roh Yeeun
Seo Minah
Terahertz nanofuse by a single nanowire-combined nanoantenna
Nanophotonics
nanofuse system
nanowire
terahertz metamaterials
title Terahertz nanofuse by a single nanowire-combined nanoantenna
title_full Terahertz nanofuse by a single nanowire-combined nanoantenna
title_fullStr Terahertz nanofuse by a single nanowire-combined nanoantenna
title_full_unstemmed Terahertz nanofuse by a single nanowire-combined nanoantenna
title_short Terahertz nanofuse by a single nanowire-combined nanoantenna
title_sort terahertz nanofuse by a single nanowire combined nanoantenna
topic nanofuse system
nanowire
terahertz metamaterials
url https://doi.org/10.1515/nanoph-2022-0768
work_keys_str_mv AT choigeunchang terahertznanofusebyasinglenanowirecombinednanoantenna
AT rohyeeun terahertznanofusebyasinglenanowirecombinednanoantenna
AT seominah terahertznanofusebyasinglenanowirecombinednanoantenna