Space-time Optics Laboratory
Department of Physics, Korea University
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We see the future from "devices" made of lights and materials.
Optics and photonics have never been conquered, not even close. Dreamers still want to make laser rifles, 3D hard holography, and optical computers. In recent years, the convergence of quantum science and nanotechnology has opened new avenues to access novel degrees of freedom in photons. In our laboratory, we want to seek out new bases of photonics, and experimentally demonstrate and utilize them in nanophotonic devices to challenge numerous unsolved problems about light.
Selected Publications
Asymmetric non-diffraction in nonlocal metasurface
Asymmetric non-diffraction in nonlocal metasurface
ACS Photon. 13(5), 1310–1318 (2026)
Quasiparticle-like optical vortices beyond 3D
Quasiparticle-like optical vortices beyond 3D
Nature Commun., 611 48–54 (2025)
Versatile 2D exciton dynamics in single flake by metasurface
Versatile 2D exciton dynamics in single flake by metasurface
Nano Lett. 8 3619 (2023)
Quasiparticle-like optical vortices arise in topological phase
Quasiparticle-like optical vortices arise in topological phase
Nature, 611 48–54 (2022)
Long-lived interlayer 2D exciton on plasmonic PhC
Long-lived interlayer 2D exciton on plasmonic PhC
ACS Photon. 8 3619 (2021)
Absorption enhanced MOKE microscopy
Absorption enhanced MOKE microscopy
Nature Commun. 11 5937 (2020)
We are hiring postdocs, graduate/undergraduate students!
We are looking for enthusiastic young scientists interested in applied experimental physics, particularly in quantum photonics and nanoscience. The main program will be the demonstration of ultrafast structurization of optical pulses with quantum materials and quantum-enhanced magneto-optical metrology based on nanophotonic platforms. Feel free to ask any question on our lab by contacting Dongha.
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