Konkuk University · Department of Physics
Engineering light at the nanoscale.
We design, fabricate, and characterize photonic-crystal cavities, non-Hermitian optical systems, and on-chip transferable semiconductor light sources at sub-wavelength scales.
Research
Light–matter interaction across scales.
From sub-wavelength photonic crystals to atomically thin two-dimensional semiconductors, our work spans seven interconnected thrusts.
Nanoscale Photonics & Plasmonics
Sub-wavelength nanophotonic structures, plasmonic resonators, and integrated photonic circuits.
Read 02 / AreaLow-dim Optical Nanomaterials
Two-dimensional semiconductors and quantum-confined materials for photonic applications.
Read 03 / AreaOptoelectronic Nanodevices
Electrically driven nanowire and microdisk light sources, micro-LEDs, and photodetectors.
Read 04 / AreaFabrication Facility
In-house nanofabrication: SEM (Hitachi-4300), PDMS transfer, e-beam writing access.
Read 05 / AreaOptical Characterization
Visible and near-infrared optical setups, butt-coupling with lensed fibers.
Read 06 / AreaNumerical Simulation
Cluster-node FDTD/FEM simulation of nanophotonic devices.
Read 07 / AreaSample Preparation
Ultra-clean sample prep, exfoliation, and pre-fabrication processing.
ReadSignature result
“The world's first integrated continuous-wave silicon nano-laser — realized via non-Hermitian coupled photonic crystal cavities.”
Demonstrated through a series of works on electrically pumped on-demand transferable nanowire and microdisk light sources, the program continues with normal-mode analysis of multi-coupled non-Hermitian cavities and minimal-gain-printed silicon nanolasers.
Sci. Adv. (2024) · Sci. Rep. (2023) · Nano Lett. (2022)
News
Recent activity.
- 2025 · Nov 17 Dowoon Kim joined NPL as an undergraduate researcher NEW MEMBER
- 2025 · Sep 26 Min Ji joined NPL as an undergraduate researcher NEW MEMBER
- 2025 · Jul 01 Seokhun Kang joined NPL as an undergraduate researcher NEW MEMBER
- 2024 · Jul 10 Ultrastable 3D heterogeneous integration paper accepted at ACS Appl. Mater. Interfaces PUBLICATION
- 2024 · Jul 03 Hyundong Kim joined as a postdoctoral researcher POSTDOC
- 2023 · Dec 01 Best Poster Award at ICAMD — Non-Hermitian coupled photonic crystal cavity analysis AWARD