Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials

The quantum geometry of Bloch wavefunctions is a fundamental property of quantum materials that can have a profound impact on its response. I will discuss how quantum geometry can strongly modulate nonlinear optical responses such as photocurrents, enabling a novel macroscopic probe for atomic confi...

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Main Author:	Xiong, Ying
Other Authors:	Justin Song Chien Wen
Format:	Thesis-Doctor of Philosophy
Language:	English
Published:	Nanyang Technological University 2022
Subjects:	Science::Physics::Atomic physics::Solid state physics
Online Access:	https://hdl.handle.net/10356/163300
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-163300
record_format	dspace
spelling	sg-ntu-dr.10356-1633002023-02-28T23:35:27Z Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials Xiong, Ying Justin Song Chien Wen School of Physical and Mathematical Sciences justinsong@ntu.edu.sg Science::Physics::Atomic physics::Solid state physics The quantum geometry of Bloch wavefunctions is a fundamental property of quantum materials that can have a profound impact on its response. I will discuss how quantum geometry can strongly modulate nonlinear optical responses such as photocurrents, enabling a novel macroscopic probe for atomic configuration in van der Waals homostructures. I will also discuss how nonlinear photoresponse can be greatly enriched by nanophotonic technologies via interaction with highly confined photonic/polaritonic modes. Such nonlinear light-matter interactions can enable the probing of momentum-resolved quantum geometry using photocurrents as well as sustain new dynamical phases of matter that have no simple analogue in equilibrium. Doctor of Philosophy 2022-12-01T01:41:46Z 2022-12-01T01:41:46Z 2022 Thesis-Doctor of Philosophy Xiong, Y. (2022). Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/163300 https://hdl.handle.net/10356/163300 10.32657/10356/163300 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	Science::Physics::Atomic physics::Solid state physics
spellingShingle	Science::Physics::Atomic physics::Solid state physics Xiong, Ying Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
description	The quantum geometry of Bloch wavefunctions is a fundamental property of quantum materials that can have a profound impact on its response. I will discuss how quantum geometry can strongly modulate nonlinear optical responses such as photocurrents, enabling a novel macroscopic probe for atomic configuration in van der Waals homostructures. I will also discuss how nonlinear photoresponse can be greatly enriched by nanophotonic technologies via interaction with highly confined photonic/polaritonic modes. Such nonlinear light-matter interactions can enable the probing of momentum-resolved quantum geometry using photocurrents as well as sustain new dynamical phases of matter that have no simple analogue in equilibrium.
author2	Justin Song Chien Wen
author_facet	Justin Song Chien Wen Xiong, Ying
format	Thesis-Doctor of Philosophy
author	Xiong, Ying
author_sort	Xiong, Ying
title	Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
title_short	Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
title_full	Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
title_fullStr	Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
title_full_unstemmed	Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
title_sort	quantum geometry and nanophotonic enriched nonlinear photoresponse in van der waals materials
publisher	Nanyang Technological University
publishDate	2022
url	https://hdl.handle.net/10356/163300
_version_	1759853716800798720

Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials

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