(Top, from left to right) High-power femtosecond Ti:sapphire system. Intense laser irradiation on a solid target. Energy density of wedge target irradiated by an intense laser pulse (PIC simulation)
(Bottom, from left to right) PAL-XFEL SSS beamline for fs-XANES experiment. Time-energy resolved x-ray pulse thru warm dense diamond. K-shell emissions from hot dense aluminum heated by XFEL pulses

Welcome to Byoung-ick Cho’s High Energy Density Physics (HEDP) laboratory at the Department of Physics and Photon Science at Gwangju Institute of Science and Technology (GIST). 

The Universe is a dynamic and energetic place. Our research is concerned with measuring and controlling energetic events in the high energy density (HED, > 1011 J/m3) states on the length and time scale of atomic and molocular motion (nanometers, femtoseconds and shorter) using ultrafast and short-wavelength light sources. Our interest spans the area of plasma, condensed matter physics, high intensity laser and X-ray sciences. Common threads are to create HED condition (extreme temperature and pressure) via intense lasers and/or X-rays, probe them using ultrafast optical and X-ray techniques. Not only we focus on understanding fundamental physics about how materials behave under such extreme conditions and how this matter interacts with photons and other particles, but also we try to apply new findings to various fields, such as fusion research, astrophysics, and medical applications. We also develop new technologies related to ultrafast lasers, X-ray sources, and ultrafast detectors.

  • Paper accepted M. S. Cho, H. -K. Chung, & B. I. Cho, “Intensity dependent resonant transmission of x-ray in solid density aluminum plasma” Physics of Plasmas
    Posted Jul 26, 2018, 7:52 AM by Byoung-ick Cho
  • Paper accepted J. W. Lee et al, “Experimental Station for Ultrafast Extreme Ultraviolet Spectroscopy for Non-equlibrium Dynamics in Warm Dense Matter”, NIMA
    Posted Jul 26, 2018, 7:53 AM by Byoung-ick Cho
  • Jang Hyeob & Gyusang join the HEDP group. Welcome !
    Posted Jul 26, 2018, 7:53 AM by Byoung-ick Cho
  • Paper accepted L. J. Bae et al, "Diagnosis of warm dense conditions in foil targets heated by intense femtosecond laser pulses using Ka imaging spectroscopy", Optics Express
    Posted Jul 26, 2018, 7:53 AM by Byoung-ick Cho
  • Dr. Hyun-Kyung Chung joins the HEDP group. Welcome~
    Posted Jul 26, 2018, 7:54 AM by Byoung-ick Cho
Showing posts 1 - 5 of 27. View more »

Positions available
We are hiring postdocs and students (Ph.D, master and undergraduate).
If you are interested in joining us, please contact Byoung-ick Cho.

Byoung-ick Cho (조병익)
office: GIST college C #313
email: bicho (at) gist.ac.kr
phone: +82-62-715-2879