Hello, my name is
Chaeyoon Kim
Ph.D candidate student
in KAIST
- kcy1121@kaist.ac.kr
- +82-10-9175-7697
What I do
THz-TDS
The THz frequency range is a domain where various properties such as phonon modes, resonant modes of antiferromagnets, and superconducting gaps are discovered. Through THz-TDS, one can investigate various properties of materials and provide insights into the characteristics of charge carriers, phonons, and other features of the material in THz range.
high power thz experiment
Generating THz radiation at mW power levels is challenging using conventional methods. However, by employing LiNbO3 and the pulse front tilting technique, it is possible to generate high-power THz light. Currently, experiments using the high-power THz are being conducted to observe processes such as the demethylation of cancer DNA.
THz emission spectroscopy
THz emission spectroscopy directly measures the THz waves from photoexcited materials such as semiconductors, FM/HM structures, organic crystals etc.. It allows the observation of the ultrafast dynamics of charge carriers and light-matter interactions within the materials. This technique provides insights into the phenomena occurring within the material and can also be used to develop new THz light sources.
Skills
My Experience
2020.09-20??
Graduate school
korea advanced institute of science and technology
After entering KAIST, I joined prof. Fabian Rotermund's group (Ultrafast Lasers & Photonics Laboratory), where I am conducting various experiments ranging from conventional THz-TDS to THz emission spectroscopy using organic crystals.
2019.09-2020.02
Exchange student
(USTEP)
the university of tokyo
During the 6 months I was dispatched as an exchange student to the University of Tokyo, I not only had the opportunity to meet various people and broaden my perspectives, but also gained confidence and passion for physics.
2015.03-2020.09
Undergraduate school
pohang university of science and technology
I enrolled at Pohang University of Science and Technology (POSTECH), which is renowned as the top science and engineering research-focused university in Korea, and majored in physics.