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Title: Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials
Authors: Xiong, Ying
Keywords: Science::Physics::Atomic physics::Solid state physics
Issue Date: 2022
Publisher: Nanyang Technological University
Source: Xiong, Y. (2022). Quantum geometry and nanophotonic enriched nonlinear photoresponse in van der Waals materials. Doctoral thesis, Nanyang Technological University, Singapore.
Abstract: 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.
DOI: 10.32657/10356/163300
Schools: School of Physical and Mathematical Sciences 
Rights: This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Theses

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