Research Field
"Semiquanta Research Lab" focuses on light engineering and defect analysis in materials
for advanced semiconductor technologies and quantum optoelectronics.
Keywords: van der Waals material, Mechanical Engineering, Nanoscale Optical Characterization
Strain-Driven Exciton Dynamics
We harness mechanical strain, often regarded as a source of instability, as a reconfigurable and controllable parameter to manipulate light emission, absorption, and scattering in low-dimensional semiconductors.
This approach enables controlled tuning of excitons—bound states of electrons and holes—providing a powerful route to engineer exciton dynamics and transport.
Students will learn:
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Fabrication of strain-modulated semiconductor devices
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Fundamental understanding of exciton physics and semiconductor optoelectronic behavior
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Design and analysis of strain–optical coupling mechanisms
Interface and Defect Analysis of Materials
via Optical Characterization
As semiconductor devices continue to scale down and increase in structural complexity, the importance of non-destructive optical characterization techniques has become critical in the semiconductor industry.
We investigate interfaces and surface defects in a wide range of materials used , using micro-scale optical spectroscopy as well as atomic force microscopy (AFM)-based techniques, and further optimize analysis and data interpretation through AI-assisted characterization methods.
Students will learn:
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Micro-scale optical spectroscopy / AFM-based nanoscale characterizations for probing disorder, defects, and material inhomogeneity
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Development of AI-assisted data analysis to extract physical insights
VdW Material Design for Quantum Optical Sources
Van der Waals (vdW) materials, as atomically thin and mechanically flexible systems, provide unique opportunities as next-generation semiconductor platforms beyond Moore’s law, as well as promising materials for space-compatible electronics and quantum integrated devices.
Using vdW materials and their heterostructures, we design quantum light sources for secure information transfer and explore emergent mechanical and optical properties toward next-generation electrical, optoelectronic, and quantum devices.
Students will learn:
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Fabrication of vdW heterostructures
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Design and realization of quantum light sources