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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書目詳細資料
主要作者: Xiong, Ying
其他作者: Justin Song Chien Wen
格式: Thesis-Doctor of Philosophy
語言:English
出版: Nanyang Technological University 2022
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在線閱讀:https://hdl.handle.net/10356/163300
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機構: Nanyang Technological University
語言: English
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總結: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.