Quantum & Biomedical Optics Lab

Introducing QBOL

PI : Kijoon Lee, PhD

We aim to study quantum nature of optical phenomena and apply its principle on the biomedical optics.

Quantum optics is fascinating by itself, as it manifests that the way nature works is not what our common sense tells us. For example, violation of Bell's inequality can be proven by undergraduate-level optical experiment using an entangled photon pair generated by SPDC (Spontaneous Parametric Down-Conversion) process in BBO crystal. In our lab, we will contemplate on what it exactly means that either 'locality' or 'reality' should break down, and devise better experiments to push the limit of our understanding of quantum optics.

In terms of Biomedical Optics, we have expertise on non-invasive detection and imaging of hemodynamic variables such as THC (total hemoglobin concentration), StO2 (oxygen saturation of tissue), and blood flow, by using near infrared light. The optical modality for above purposes include DOT (diffuse optical tomography), DCS (diffuse correlation spectroscopy), and DSCA (diffuse speckle contrast analysis). We intend to exploit every aspect of light (wavelength, coherence, and polarization) in order to obtain hemodynamic variables.

Also, as a side research, we are keen in transforming the way we learn and practice music. The staff score that consists of five horizontal lines may be good enough way to visually read and enjoy the music, but much information regarding the interval and harmony are lost by using it. We'd like to develop both more physics-based and more perception-based way of visually arranging musical notes, with a spiral score system as its starting point. (its patent has been recently registered as US12223930B2)

As DGIST is one of the very few institute in Korea which fosters trans-disciplinary studies, whoever with curious minds will be able to accomplish a lot once he/she joins us.

If you are interested in Post-Graduate positions, please send your CV to kjlee@dgist.ac.kr

QBOL News

Jul 23-26, 2025 - Gang Min Shin and Yunyoung Cho's poster on Cerebral Blood Flow during N-back Task was presented at the Neuroscience 2025 at Niigata, Japan. Good job~

Apr 8, 2025 - 박영석 and his UGRP team's paper has been accepted at the International Conference of Music Perception and Cognition (ICMPC) being held in Brazil in July 2025, as a poster. Congratulations~

Apr 7, 2025 - 신강민, 조윤영's paper has been accepted as a poster at the Neuroscience 2025 Conference taking place in Niigata, Japan in July. Congratulations~

Feb 24, 2025 - Chan Woo Kim has joined QBOL as a Master's Deg Candidate. Welcome with warm heart~

Feb 20, 2025 - 2024 UGRP team (박영석, 곽현우, 윤준호, 박재민, 윤신이) has presented their research on harmony education at KSMPC at KAIST.

Feb 12-14, 2025 - Attended OSK meeting at BEXCO, Busan. Gang Min Shin has presented a poster.

Mar 9, 2024 - 2023 UGRP team (전해원, 이하임, 송현주, 이화정) has presented their research on music similarity measurement at KSMPC at Sogang University.

Jan 12, 2024 - 2023 UGRP team (전해원, 이하임, 송현주, 이화정) has won a UGRP award (장려상) from DGIST. Congratulations~

Oct 31, 2023 - Four undergraduate researchers (강광휘, 김준호, 이태성, 정해익) were awarded an Outstanding Poster Award at 2023 Student Conference at EECS, DGIST. Congratulations to all~

Oct 26, 2023 - Two posters were presented at KPS Fall Meeting at Chang-Won Convention Center : (1) 양자 상태 단층 촬영을 통한 두-입자 계의 분석 (2) NIR 대역 PPG, BFI 신호 기반 비침습적 혈중 글루코스 농도 예측 모델 개발

Oct 2, 2023 - First paper by Jae Yoon Park has been accepted by Biomedical Optics Express. Congratulations~

Sep 7, 2023 - QBOL Dinner Party at Biseul Village. All attended and had a good time.

Aug 24-25, 2023 - Workshop on Acupuncture Treatment by ICT Convergence Research at Pukyong National University

Aug 22, 2023 - 2023 Summer Student Networking Conference (광학 교류회) at 창의융합마루

Aug 11, 2023 - Attended The 14th Applied Physics Symposium at Gyeongju. Jae Yoon Park has been awarded an Outstanding Poster Award. Congratulations~

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