Jonggeun Hwang, Ph. D. (01/2024 ~)
Postdoctoral Research Fellow, Department of Physics, POSTECH
Research interest: Single-molecule imaging in ambient conditions, Investigation of single-molecule level chemical reaction using Tip-enhanced Raman spectroscopy (TERS), Light-matter interaction in low-dimensional materials
Interest in life: Whisky, Food Science, Yacht Sailing
Email & Office: qrfaewsd@postech.ac.kr & 3) 217
Hyeongwoo Lee (03/2020 ~)
Graduate Student, Department of Physics, POSTECH
Undergraduate research 03/2019 - 02/2020
Research interest: Understanding nanoscale light-matter interactions in low-dimensional quantum materials and devices. Expertise in tip-enhanced photoluminescence (TEPL) nano-spectroscopy and -imaging.
Interest in life: Adventures (More Information: 1, 2, 3)
Email & Office: physicsurf@postech.ac.kr & 3) 306
- 2020, 하계학술발표회 우수논문상, 한국광학회
- 2022, 제28회 휴먼테크논문대상 은상, 삼성전자
- 2022, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
- 2022, 융문반도체논문상, 한국물리학회 (상금 250만원)
- 2023, POSTECH Alchemist fellow
- 2023, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
- H. Lee*, et al., "Tip-Enhanced Photoluminescence Nano-Spectroscopy and Nano-Imaging" Nanophotonics 9, 3089 (2020)
- H. Lee*, et al., "Inducing and probing the localized excitons in atomically thin semiconductors via tip-enhanced cavity-spectroscopy" Advanced Functional Materials 31, 2102893 (2021) [Frontispiece]
- H. Lee*, et al., "Tip-induced strain engineering of a single metal halide perovskite quantum dot" ACS Nano 15, 9057 (2021)
- H. Lee* and Y. Koo*, et al., "Drift-dominant exciton funneling and trion conversion in 2D semiconductors on the nanogap" Science Advances 8, eabm5236 (2022)
- Y. Koo* and H. Lee*, et al., “Tunable interlayer excitons and switchable interlayer trions via dynamic near-field cavity,” Light: Science & Applications 12, 59 (2023).
- H. Lee*, et al., “All-optical control of high-purity trions in nanoscale waveguide,” Nature Communications 14, 1891 (2023).
“BAND GAP ENGINEERING DEVICE OF SINGLE QUANTUM DOTS AND THE METHOD THEREOF,” PCT, Pending; # PCT/KR2020/018973 (2020).
“BAND GAP ENGINEERING DEVICE OF SINGLE QUANTUM DOTS AND THE METHOD THEREOF,” Korea, Pending; # 10-2020-0106941 (2020).
“SINGLE QUANTUM EMISSION GENERATOR AND THE METHOD THEREOF,” Korea, Pending; # 10-2020-0106940 (2020).
“AN ANALYSIS METHOD OF TIP-ENHANCED SPECTROSCOPY, AND A TIP-ENHANCED SPECTROSCOPY,” Korea, Pending; # 10-2022-0182046 (2022).
"ULTRA-PRECISION ELECTRON DENSITY CONTROL DEVICE” Korea, Pending; # 10-2024-0143388 (2024).
"ULTRA-FAST CONDUCTIVE OPTICAL RESONATOR" Korea, Pending; # 10-2024-0143391 (2024).
Min Gu Kang (03/2020 ~)
Graduate Student, Department of Physics, POSTECH
Undergraduate research 03/2019 - 02/2020
Research interest: Understanding nanoscale light-matter interactions in low-dimensional quantum materials and devices. Expertise in tip-enhanced Raman scattering (TERS) nano-spectroscopy and -imaging, and photo-induced force microscopy (PiFM).
Interest in life: Fitness and driving
Email & Office: mgkang96@postech.ac.kr & 3) 306 / mgkang@kriss.re.kr & 301) 136
- 2021, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
- 2022, 가을학술논문발표회 우수발표상 (구두), 한국물리학회
- 2022, POSTECH Alchemist fellow
- 04/2020 ~02/2021, Visiting researcher in KRICT
- 01/2024 ~, Student researcher in KRISS
- M. Kang*, et al., "Conformational heterogeneity of molecules physisorbed on a gold surface at room temperature" Nature Communications 13, 4133 (2022)
- M. Kang*, et al., "Nanoscale Manipulation of Exciton–Trion Interconversion in a MoSe2 Monolayer via Tip-Enhanced Cavity-Spectroscopy" Nano Letters 24, 279 (2024)
"System for exciton-trion conversion and light emission", Korea, pending.
Yeonjeong Koo (03/2021 ~ 08/2025 Ph.D. candidate)
Graduate Student, Department of Physics, POSTECH
Undergraduate research 03/2019 - 02/2021
Research interest: Control of nanoscale light-matter interactions in low-dimensional quantum materials. Expertise in tip-enhanced nano-optical trapping (TENT) spectroscopy.
Interest in life: Producing videos and creative web contents (More Information)
Email & Office: yjkoo@postech.ac.kr & 3) 306
- 2021, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
- 2021, 가을학술논문발표회 우수발표상 (구두), 한국물리학회
- 2022,제28회 휴먼테크논문대상 은상,삼성전자 (상금 700만원)
- 2022, 우수여성대학원생상, 한국물리학회
- 08/2022 - 02/2023, Visiting grad student in JILA, Boulder, full support by NRF
- 2023, 제29회 휴먼테크논문대상 동상, 삼성전자
- 2023, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
- 2023, 융문반도체논문상, 한국물리학회
- 05/2023 ~ 07/2023, Visiting researcher in KRISS
- 2023, 포스테키안 펠로우십 혁신 부문
- 2024, 가을학술논문발표회 우수발표상 (구두), 한국물리학회
- 2024, ISPSA Best poster award
- 2024, 박사과정생연구장려금
- 2025, 제31회 휴먼테크논문대상 동상, 삼성전자 (상금 500만원)
- Y. Koo*, et al., “Tip-induced nano-engineering of strain, bandgap, and exciton funneling in 2D semiconductors" Advanced Materials 33, 2008234 (2021) [Front cover]
- H. Lee* and Y. Koo*, et al., "Drift-dominant exciton funneling and trion conversion in 2D semiconductors on the nanogap" Science Advances 8, eabm5236 (2022)
- Y. Koo* and H. Lee*, et al., “Tunable interlayer excitons and switchable interlayer trions via dynamic near-field cavity,” Light: Science & Applications 12, 59 (2023).
- Y. Koo*, et al., “Nanocavity-integrated van der Waals heterobilayers for nano-excitonic transistor,” ACS Nano 17, 4584 (2023).
"Y. Koo*, et al., "Dynamical control of nanoscale light-matter interactions in low-dimensional quantum materials" Light: Science & Applications 13, 30 (2024).
"Y.Koo* et al.,"High momentum two-dimensional propagation of emitted photoluminescence coupled with surface lattice resonance" Light: Science & Applications 14, 218 (2025).
“METHOD FOR CONTROL AND ANALYSIS OF NANO-WRINKLE EMITTERS,” Korea, Pending; # 10-2021-0024218 (2021).
“AN OPTICAL SIGNAL RECORDING PROCESS AND MEDIUM,” Korea, Pending; # 10-2022-0182052 (2022).
“A 2-DIMENSIONAL SEMICONDUCTOR CONTROLLING METHOD,” Korea, Pending; # 10-2023-0003097 (2023).
“A TIP-ENHANCED SPECTROSCOPY,” Korea, Pending; # 10-2023-0003096 (2023).
Taeyoung Moon (03/2021 ~)
Graduate Student, Department of Physics, POSTECH
Research interest: Exploring nanoscale light-matter interactions. Tip-induced control of nano-optical phenomena.
Interest in life: Basketball, Fitness
Email & Office: kevin3556@postech.ac.kr & 3) 306
- 2022, 동계학술대회 우수발표상 (구두), 한국진공학회
- 2023, 제29회 휴먼테크논문대상 동상, 삼성전자 (상금 500만원)
- 2023, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
- 2023년 한국진공학회지 우수논문상, 한국진공학회
- 2023년 가을학술논문발표회 우수발표상 (포스터), 한국물리학회
- 2024년 한국진공학회지 으뜸포스터발표상, 한국진공학회
- T. Moon* and H. Joo*, et al., “Adaptive-Gap Tunable Surface-Enhanced Raman Scattering”, Nano Letters 24(12), 3777-3784 (2024)
“DIGITALLY OPERATING SHEAR-FORCE ATOMIC FORCE MICROSCOPY AND OPERATION METHOD,” Korea, Pending; # 10-2021-0124827 (2021).
Jae Won Ryu (09/2022 ~)
Graduate Student, Department of Mechanical Engineering, POSTECH
Researcher 04/2022 - 08/2022
Research interest: Investigation of tip-induced nano optical phenomena in low dimensional quantum materials and devices. Control of the material properties in sub-nano scale via tip-enhanced approach.
Interest in life: Sports, Playing instruments, Traveling
Email & Office: rjw0904@postech.ac.kr & 3) 306
Sujeong Kim (06/2022 ~)
Graduate Student, Department of Physics, POSTECH
Research interest: Understanding optoelectronic phenomena in low-dimensional devices via tip-enhanced Raman spectroscopy (TERS) and tip-enhanced photoluminescence (TEPL) nano-spectroscopy and -imaging.
Interest in life: Playing instruments
Email & Office: sjkim2904@postech.ac.kr & 3) 306
-2022, POSTECH 물리학과 1학기 우수조교상
-2022, POSTECH Alchemist fellow
-2023, POSTECH 물리학과 2학기 우수조교상
-2023, 봄학술논문발표회 우수발표상 (포스터), 한국물리학회
-2023, 가을학술논문발표회 우수발표상 (포스터), 한국물리학회
-2024, 제30회 삼성휴먼테크논문대상 동상, 삼성전자 (상금 500만원)
-2024, 제30회 삼성휴먼테크논문대상 장려상, 삼성전자
-2024, 봄학술논문발표회 우수발표상 (구두), 한국물리학회
-2024, ICNP 2024 Best poster award second prize
-2024, N2D 2024 Best poster award
-2024,POSTECHIAN Fellowship (혁신 부문)
- H. Lee* and S. Kim*, et al., "Quantum tunneling high-speed nano-excitonic modulator" Nature communications 15, 8725 (2024)
- S. Kim* and H. Lee*, et al., "Dynamical control of nanoscale electron density in atomically thin n-type semiconductors via nano-electric pulse generator" Science Advances 10, eadr0492 (2024)
"ULTRA-PRECISION ELECTRON DENSITY CONTROL DEVICE” Korea, Pending; # 10-2024-0143388 (2024).
"ULTRA-FAST CONDUCTIVE OPTICAL RESONATOR" Korea, Pending; # 10-2024-0143391 (2024).
Taehyun Baek (07/2022 ~)
Graduate Student, Department of Physics, POSTECH
Research interest: Development of novel measurement techniques based on atomic force microscopy (AFM).
Interest in life: Sports, Games
Email & Office: bth0406@postech.ac.kr & 3) 306
Huitae Joo (03/2023 ~)
Graduate Student, Department of Physics, POSTECH
Undergraduate research 01/2022 - 02/2023
Research interest: Optical measurements, phase transition, low-dimensional statistical physics, Cavity quantum electrodynamics.
Interest in life: 16 personalities
Email & Office: phytae@postech.ac.kr & 3) 306
- 2023, Best poster award in APNFO 14
- 2023, 제29회 삼성휴먼테크논문대상 동상, 삼성전자
- 2023, Best poster award in APNFO 14
- 2024, 제30회 삼성휴먼테크논문대상 동상, 삼성전자
- 2024, 제30회 삼성휴먼테크논문대상 장려상, 삼성전자
- T. Moon* and H. Joo*, et al., “Adaptive-Gap Tunable Surface-Enhanced Raman Scattering”, Nano Letters 24(12), 3777-3784 (2024)
Yong Bin Kim (03/2023 ~)
Graduate Student, Department of Physics, POSTECH
Researcher 09/2022 - 02/2023
Research interest: Understanding and controlling carrier dynamics in low dimensional materials. Developing instrument based on atomic force microscopy (AFM)
Interest in life: Movie, Driving, Playing instrument
Email & Office: life0944@postech.ac.kr & 3) 306
Hyeonmin Oh (01/2024~)
Graduate Student, Department of Physics, POSTECH
Research interest: Tip-enhanced nano spectroscopy, exploration of quantum emitters in low-dimensional materials— especially their origin and control —and the investigation of tip-induced interactions within quantum systems.
Interest in life: Bible / Violin / Basketball
Email & Office: 10ohmstrong@postech.ac.kr & 3)306
Sehwa Jeong (03/2024~)
Graduate Student, Department of Physics, POSTECH
Research interest: Understanding the optical phase transition phenomena of quasiparticles in low-dimensional materials via tip-enhanced Raman spectroscopy (TERS) and tip-enhanced photoluminescence (TEPL) nano-spectroscopy and imaging.
Interest in life: LEGO, Football
Email & Office: shjj1314@postech.ac.kr & 2) 217
Woon Jung (02/2025~)
Graduate Student, Department of Physics, POSTECH
Research interest: Understanding ultrafast dynamics and nanoscale optical measurements
Interest in life: swimming, fashion, cafe
Email & Office: wjung@postech.ac.kr & 3) 306
Ilgyu Choi (02/2025 ~)
Graduate Student, Department of Physics, POSTECH
Research interest: Understanding the interactions of plasmon with condensed matter by tip-enhanced spectroscopy. Industrial applications of tip-enhanced spectroscopy.
Interest in life: Games, Tarot
Email & Office: igchoi98@postech.ac.kr & 3) 217
Kijeong Park (01/2025 ~)
Graduate Student, Department of Physics, POSTECH
Research interest: Nanophotonics, Low-Dimesional materials, Chiral Purcell effect, Quantum Optics
Interest in life: Guitar / Games / Plants
Email & Office: kijjeongpark@postech.ac.kr & 3)306
Yujin Lee (03/2025 ~)
Graduate Student, Department of Quantum Information Science, POSTECH
Research interest: Understanding light-matter interaction in low dimensional quantum materials. Exploring advanced approaches to control the interaction via tip enhanced nano spectroscopy.
Interest in life: drawing and painting
Email & Office: nobellyj@postech.ac.kr & 3) 306
Taegeon Lee, Ph. D. (03/2025 ~)
Postdoctoral Research Associate, Department of Physics, POSTECH
Research interest: Light-matter interaction in two-dimensional layered structure, In-situ Raman/PL imaging, Tip-enhanced Raman spectroscopy (TERS)
Interest in life: Movie, Skiing
Email & Office: ltgeon@gmail.com & 3) 023
Hyeon jung Kim
Staff, Department of Physics, POSTECH
Email & Office: khj210@postech.ac.kr & 3)305
Alumni
Dong Yun Lee (04/2019 ~ 04/2021), Postdoctoral Research Fellow (UNIST)
Jinseong Choi (01/2020 ~ 08/2021), Undergraduate student (UNIST)
Hwanhee Kim (03/2021 ~ 02/2022), Graduate student (UNIST)
Jaehun Shin (07/2024~02/2025), Undergraduate student (POSTECH)
