Workshop of PNU Physics, HU RIES, and HU Physics in Jan 2026

International Conference on Advanced Materials and Devices in Dec 2025

ARPES system installation in PNU in Dec 2025

HRG & CAT in Berkeley in Nov 2025

Birthday Party in 2025

Symposium on Applied Physics in Aug 2025

Annual Conference of the Korean Vacuum Society in Aug 2025

International Conference on Electronic Spectroscopy and Structure in July 2025

KPS Spring Meeting in Apr 2025

The 23rd Korea-Taiwan-Japan Symposium in Mar 2025 

The 3rd Joint Workshop for Quantum Matters in Jan 2025 

KPS Fall meeting in Oct 2024

PNU Commencement in Aug 2024

Annual Conference of the Korean Vacuum Society in Aug 2024

HRG in Paris in July 2024

HRG&CAT in Berkeley in Dec 2023

Annual Conference of the Korean Vacuum Society in Aug 2023

Berkeley in  Dec 2022

The 16th Dielectric Symposium in  Feb 2021

APS March Meeting in 2019

ALS User Meeting in Oct 2018

Emallia Conference in Sapporo in 2018

KPS Fall Meeting in Oct 2017

Emallia Conference in Sapporo in 2017

Group lunch and dinner sometime in 2016

Teacher's day in 2015

KPS Bu-Ul-Gyeong Chapter Meeting in 2015

Once upon a time at the HRG in 2014