主講人Speaker：
Dr. Ya-Lun HO, Senior Researcher
RESEARCH CENTER FOR ELECTRONICAND OPTICAL MATERIALS,
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, JAPAN
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主講主題Title：
Freestanding Membrane NanophotonicPlatform for Enhancing Light Couplingin Transition Metal Dichalcogenide Monolayers

時間Time:
2024 Dec 25, 2pm-4pm

地點Venue:
Room 308, 3F, Mechanical Building, CCU

演講摘要Abstract：
In recent years, metasurfaces have garnered significant attention for their exceptional ability to achieve strong light-matter coupling, making them a promising platform for advanced nanophotonic applications. Unlike conventional substrate-based metasurface platforms, freestanding membrane metasurfaces feature a two-dimensional design that enhances optical confinement and manipulation, enabling the realization of high-Q optical modes, including those supporting bound states in the continuum (BIC). These optical modes, characterized by their lack of radiative losses and extremely high quality factors, open new possibilities for efficient light-matter interactions, particularly for 2D material systems.
This study focuses on the role of membrane metasurfaces in supporting quasi-BIC modes. By leveraging the unique optical properties of membrane metasurfaces, we demonstrate significantly stronger field enhancement and optical confinement compared to substrate-based metasurfaces and further explore the coupling between the membrane metasurface and transition metal dichalcogenide (TMD) monolayers, through the quasi-BIC mode. The findings emphasize the pivotal role of membrane metasurfaces in advancing nanophotonic metasurface design for BIC-supported applications.


Contact Person:
Prof. Guo-En Chang, imegec@ccu.edu.tw