Terahertz high-TC superconductor photonics

There is a considerable research interest in Terahertz technologies due to their non-ionising and non-destructive radiation. This could be useful for many applications, such as non-invasive medical sensors and terahertz spectroscopy. To realise this potential, terahertz sensor is needed. Metamateria...

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Main Author: Pang, Ietro Teng Chen
Other Authors: Ranjan Singh
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/156984
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author Pang, Ietro Teng Chen
author2 Ranjan Singh
author_facet Ranjan Singh
Pang, Ietro Teng Chen
author_sort Pang, Ietro Teng Chen
collection NTU
description There is a considerable research interest in Terahertz technologies due to their non-ionising and non-destructive radiation. This could be useful for many applications, such as non-invasive medical sensors and terahertz spectroscopy. To realise this potential, terahertz sensor is needed. Metamaterials such as asymmetric split rings can offer such capability thanks to the ultrasensitive Fano resonance due to the sensor's change in capacitance and inductor. Superconductors are unique material as it has zero DC resistance. By fabricating terahertz asymmetric split ring using superconductors, this setup can potentially realise the opportunity to control and tune the resonance of the metamaterial sensor. In this thesis, we investigate the use of ion-irradiation to induce damage to a d-wave YBCO superconductor to create a Terahertz Asymmetric Split Ring metamaterial on a Lanthanum aluminate substrate. We will also use this opportunity to gather the material characteristic of undamaged YBCO. Ion irradiated YBCO via Terahertz time-domain spectroscopy to study its conductivity and consider the use of numerical simulation to gain further insight into the film.
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spelling ntu-10356/1569842023-02-28T23:15:49Z Terahertz high-TC superconductor photonics Pang, Ietro Teng Chen Ranjan Singh School of Physical and Mathematical Sciences ranjans@ntu.edu.sg Science::Physics::Electricity and magnetism Science::Physics::Optics and light There is a considerable research interest in Terahertz technologies due to their non-ionising and non-destructive radiation. This could be useful for many applications, such as non-invasive medical sensors and terahertz spectroscopy. To realise this potential, terahertz sensor is needed. Metamaterials such as asymmetric split rings can offer such capability thanks to the ultrasensitive Fano resonance due to the sensor's change in capacitance and inductor. Superconductors are unique material as it has zero DC resistance. By fabricating terahertz asymmetric split ring using superconductors, this setup can potentially realise the opportunity to control and tune the resonance of the metamaterial sensor. In this thesis, we investigate the use of ion-irradiation to induce damage to a d-wave YBCO superconductor to create a Terahertz Asymmetric Split Ring metamaterial on a Lanthanum aluminate substrate. We will also use this opportunity to gather the material characteristic of undamaged YBCO. Ion irradiated YBCO via Terahertz time-domain spectroscopy to study its conductivity and consider the use of numerical simulation to gain further insight into the film. Bachelor of Science in Applied Physics 2022-05-05T07:16:20Z 2022-05-05T07:16:20Z 2022 Final Year Project (FYP) Pang, I. T. C. (2022). Terahertz high-TC superconductor photonics. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/156984 https://hdl.handle.net/10356/156984 en application/pdf Nanyang Technological University
spellingShingle Science::Physics::Electricity and magnetism
Science::Physics::Optics and light
Pang, Ietro Teng Chen
Terahertz high-TC superconductor photonics
title Terahertz high-TC superconductor photonics
title_full Terahertz high-TC superconductor photonics
title_fullStr Terahertz high-TC superconductor photonics
title_full_unstemmed Terahertz high-TC superconductor photonics
title_short Terahertz high-TC superconductor photonics
title_sort terahertz high tc superconductor photonics
topic Science::Physics::Electricity and magnetism
Science::Physics::Optics and light
url https://hdl.handle.net/10356/156984
work_keys_str_mv AT pangietrotengchen terahertzhightcsuperconductorphotonics