KU Nanophotonics Research Lab on KU Nanophotonics

You-Shin No

Mon, 01 Jan 0001 00:00:00 +0000

You-Shin No leads the Nanophotonics Research Lab at Konkuk University. He has been Associate Professor in the Department of Physics since 2021, following Assistant Professor (2017–2021) and a postdoctoral fellowship at Harvard with Prof. Charles M. Lieber (2014–2017).

His research focuses on engineering light–matter interaction at the nanoscale, with particular emphasis on integrated photonic-crystal devices, non-Hermitian optics, and on-chip transferable semiconductor light sources.

Hyundong Kim

Mon, 01 Jan 0001 00:00:00 +0000

Joined NPL as a postdoctoral researcher in July 2024.

Nanoscale Photonics & Plasmonics

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Sub-wavelength nanophotonic structures, plasmonic resonators, and integrated photonic circuits.

Optical Microscope

Mon, 01 Jan 0001 00:00:00 +0000

Standard optical microscope (OM) for sample inspection and alignment.

Gil-Woo Lee

Mon, 01 Jan 0001 00:00:00 +0000

Low-dim Optical Nanomaterials

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Two-dimensional semiconductors and quantum-confined materials for photonic applications.

Transfer Stage

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Transfer stage for PDMS micro-tip — composed of an optical microscope, damping plate, and XYZ stage.

Dowoon Kim

Mon, 01 Jan 0001 00:00:00 +0000

NIR Setup

Mon, 01 Jan 0001 00:00:00 +0000

Optical measurement setup for light in the near-infrared wavelength range.

Optoelectronic Nanodevices

Mon, 01 Jan 0001 00:00:00 +0000

Electrically driven nanowire and microdisk light sources, micro-LEDs, and photodetectors.

Min Ji

Mon, 01 Jan 0001 00:00:00 +0000

Sunghyun Jun

Mon, 01 Jan 0001 00:00:00 +0000

Fabrication Facility

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In-house nanofabrication: SEM (Hitachi-4300), PDMS transfer, e-beam writing access.

Visible Setup

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Optical measurement setup for light in the visible wavelength range.

Cluster Nodes

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Cluster of compute nodes for full-wave optical simulation of nanophotonic devices.

Optical Characterization

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Visible and near-infrared optical setups, butt-coupling with lensed fibers.

Numerical Simulation

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Cluster-node FDTD/FEM simulation of nanophotonic devices.

Sample Preparation

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Ultra-clean sample prep, exfoliation, and pre-fabrication processing.

Gyu-Wan Choi

Mon, 01 Jan 0001 00:00:00 +0000

Ja-Hyun Ku

Mon, 01 Jan 0001 00:00:00 +0000

Sun-Wook Park

Mon, 01 Jan 0001 00:00:00 +0000

Victor Dusabumuremyi

Mon, 01 Jan 0001 00:00:00 +0000

Kyong-Tae Park

Mon, 01 Jan 0001 00:00:00 +0000

Min-Woo Kim

Mon, 01 Jan 0001 00:00:00 +0000

Byung-Ju Min

Mon, 01 Jan 0001 00:00:00 +0000

Yeon-Ji Kim

Mon, 01 Jan 0001 00:00:00 +0000

Dohyun Lee

Mon, 01 Jan 0001 00:00:00 +0000

Quantum dot–coated graphene/MoS₂ barristor for high-responsivity infrared photodetection

Tue, 01 Dec 2026 00:00:00 +0000

Recent progress in on-demand transfer-enabled integration of wavelength-scale light sources

Mon, 01 Jun 2026 00:00:00 +0000

Dowoon Kim joined NPL as an undergraduate researcher

Mon, 17 Nov 2025 00:00:00 +0000

Min Ji joined NPL as an undergraduate researcher

Fri, 26 Sep 2025 00:00:00 +0000

Seokhun Kang joined NPL as an undergraduate researcher

Tue, 01 Jul 2025 00:00:00 +0000

Minimal-gain-printed silicon nanolaser

Fri, 20 Sep 2024 00:00:00 +0000

Ultrastable 3D heterogeneous integration paper accepted at ACS Appl. Mater. Interfaces

Wed, 10 Jul 2024 00:00:00 +0000

Ultrastable 3D Heterogeneous Integration via N-Heterocyclic Carbene Self-Assembled Nanolayers

Wed, 10 Jul 2024 00:00:00 +0000

Hyundong Kim joined as a postdoctoral researcher

Wed, 03 Jul 2024 00:00:00 +0000

Best Poster Award at ICAMD — Non-Hermitian coupled photonic crystal cavity analysis

Fri, 01 Dec 2023 00:00:00 +0000

Normal mode analysis in multi-coupled non-Hermitian optical nanocavities

Sun, 01 Oct 2023 00:00:00 +0000

On-Demand Waveguide-Integrated Microlaser-on-Silicon

Tue, 01 Aug 2023 00:00:00 +0000

OSK Winter Conference (2023)

Thu, 23 Feb 2023 00:00:00 +0000

Poster session at OSK Winter Conference

Thu, 23 Feb 2023 00:00:00 +0000

Poster session at OSK Winter Conference

Thu, 23 Feb 2023 00:00:00 +0000

Poster session at OSK Winter Conference

Thu, 23 Feb 2023 00:00:00 +0000

Electrically driven on-chip transferrable micro-LEDs

Mon, 12 Dec 2022 00:00:00 +0000

Oral presentation at NanoKorea

Mon, 11 Jul 2022 00:00:00 +0000

Oral presentation at NanoKorea

Mon, 11 Jul 2022 00:00:00 +0000

Poster presentation at NanoKorea

Mon, 11 Jul 2022 00:00:00 +0000

Student seminar at U.C. Berkeley

Fri, 20 May 2022 00:00:00 +0000

CLEO in San Jose, USA

Tue, 17 May 2022 00:00:00 +0000

Oral presentation at CLEO

Tue, 17 May 2022 00:00:00 +0000

New transmission setup

Thu, 07 Apr 2022 00:00:00 +0000

Membership training at Mt. Acha

Sun, 27 Mar 2022 00:00:00 +0000

All-graphene-contact electrically pumped on-demand transferrable nanowire source

Tue, 15 Feb 2022 00:00:00 +0000

Best Poster Award at ICAMD

Thu, 09 Dec 2021 00:00:00 +0000

Poster presentation at ICAMD

Thu, 09 Dec 2021 00:00:00 +0000

Poster presentation at ICAMD

Thu, 09 Dec 2021 00:00:00 +0000

Poster presentation at ICAMD

Thu, 09 Dec 2021 00:00:00 +0000

New SEM has arrived — Hitachi-4300

Wed, 10 Nov 2021 00:00:00 +0000

Simulation computer & cluster

Thu, 12 Aug 2021 00:00:00 +0000

Victor farewell

Thu, 10 Jun 2021 00:00:00 +0000

On-Chip Transferrable Microdisk Lasers

Thu, 15 Oct 2020 00:00:00 +0000

Tunable non-Hermiticity in Coupled Photonic Crystal Cavities with Asymmetric Optical Gain

Sat, 01 Aug 2020 00:00:00 +0000

Ripples, Wrinkles, and Crumples in Folded Graphene

Fri, 01 May 2020 00:00:00 +0000

Electrically Driven Micro- and Nano-Scale Semiconductor Light Sources

Mon, 01 Apr 2019 00:00:00 +0000

Light Coupling between Plasmonic Nanowire and Nanoparticle

Sat, 01 Sep 2018 00:00:00 +0000

Characteristics of a Vertical Metal-Insulator-Metal Microring Cavity

Tue, 01 May 2018 00:00:00 +0000

Long-range surface plasmon polariton detection with graphene photodetector

Sun, 01 Apr 2018 00:00:00 +0000

Layer number identification of CVD-grown multilayer graphene using Si peak analysis

Mon, 15 Jan 2018 00:00:00 +0000

Enhancement of Light Absorption in Silicon Nanowire Photovoltaic Devices with Dielectric and Metallic Grating Structures

Fri, 01 Dec 2017 00:00:00 +0000

Subwavelength core/shell cylindrical nanostructure for novel plasmonic and metamaterial devices

Sun, 01 Oct 2017 00:00:00 +0000

Spatially localized wavelength-selective absorption in morphology-modulated semiconductor nanowires

Fri, 01 Sep 2017 00:00:00 +0000

Shape-controlled assembly of nanowires for photonic elements

Thu, 01 Dec 2016 00:00:00 +0000

Characteristics of strain-sensitive photonic crystal cavities in a flexible substrate

Tue, 01 Nov 2016 00:00:00 +0000

Direct observation of exceptional points in coupled photonic-crystal lasers with asymmetric optical gains

Sat, 01 Oct 2016 00:00:00 +0000

Encoding Active Device Elements at Nanowire Tips

Fri, 01 Jul 2016 00:00:00 +0000

A high-resolution strain-gauge nanolaser

Sun, 01 May 2016 00:00:00 +0000

Dependence of Q Factor on Surface Roughness in a Plasmonic Cavity

Fri, 01 Apr 2016 00:00:00 +0000

Invisible Hyperbolic Metamaterial Nanotube at Visible Frequency

Tue, 01 Dec 2015 00:00:00 +0000

Facet-Selective Epitaxy of Compound Semiconductors on Faceted Si Nanowires

Sat, 01 Aug 2015 00:00:00 +0000

Plateau-Rayleigh crystal growth of periodic shells on one-dimensional substrates

Wed, 01 Apr 2015 00:00:00 +0000

Strong interactive growth behaviors in solution-phase synthesis of three-dimensional metal oxide nanostructures

Sun, 01 Feb 2015 00:00:00 +0000

Low-threshold photonic-band-edge laser using iron-nail-shaped rod array

Sat, 01 Mar 2014 00:00:00 +0000

Design of plasmonic cavities

Wed, 01 Jan 2014 00:00:00 +0000

Electrically driven nanobeam laser

Fri, 01 Nov 2013 00:00:00 +0000

Investigation of Light Coupling between a Semiconductor Nanowire and a Plasmonic Waveguide

Sun, 01 Sep 2013 00:00:00 +0000

A Double-Strip Plasmonic Waveguide Coupled to an Electrically Driven Nanowire LED

Fri, 15 Feb 2013 00:00:00 +0000

Ultrasmall subwavelength nanorod plasmonic cavity

Sun, 01 May 2011 00:00:00 +0000

Characteristics of dielectric-band modified single-cell photonic crystal lasers

Thu, 15 Jan 2009 00:00:00 +0000

Modal Characteristics in a Single-Nanowire Cavity with a Triangular Cross Section

Sat, 01 Nov 2008 00:00:00 +0000

About

Mon, 01 Jan 0001 00:00:00 +0000

The Nanophotonics Research Lab (NPL) at Konkuk University is engaged in interdisciplinary research focused on the study of optical phenomena at the nanoscale, semiconductor device physics and applications, and the development of novel nanotechnology.

Vision

To engineer light–matter interaction at sub-wavelength scales, enabling the next generation of integrated photonic devices: from on-chip transferable nanowire light sources to non-Hermitian coupled photonic crystal cavities.

Approach

We combine three pillars:

Design & simulation — finite-difference time-domain analysis of photonic crystal cavities, normal-mode decomposition of coupled non-Hermitian systems, and full-wave simulation on cluster nodes.
Fabrication — in-house SEM (Hitachi-4300), PDMS micro-tip transfer stages, and ultra-clean sample preparation.
Characterization — visible and near-infrared optical setups, butt-coupling with lensed fibers, single-photon-level detection.

History

2014 — Lab founded at Konkuk University.
2017 — Assistant professor appointment of the PI.
2021 — Associate professor; world’s first integrated continuous-wave silicon nano-laser published.
2023 — Scientific Reports publication on non-Hermitian coupled photonic crystal cavities, ICAMD Best Poster Award.
2024 — Minimal-gain-printed silicon nanolaser (Sci. Adv.) and ultrastable 3D heterogeneous integration via NHC self-assembled nanolayers (ACS Appl. Mater. Interfaces).

Join Us

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We are recruiting motivated undergraduate, master’s, and Ph.D. students who are excited about nanophotonics, optoelectronic devices, and integrated photonic systems.

Currently open

Undergraduate research interns — 2025 NPL Intern recruitment is ongoing. Background in physics, electrical engineering, or materials science preferred.
Graduate students (M.S. / Ph.D.) — please contact the PI directly with a CV and a one-page statement of interest.

How to apply

Send the following to ysno@konkuk.ac.kr:

Curriculum vitae (PDF)
A short statement (≤ 1 page) of research interests
Transcripts (unofficial OK)

What we offer

Hands-on access to in-house nanofabrication facilities (SEM, PDMS transfer, optical setups).
Cluster node simulation environment.
Active collaboration with leading domestic and international groups.
Publication opportunities in top journals (Science, Sci. Adv., Nano Letters, Sci. Rep., Nanophotonics).