A5059331025- Gyrotron and Vacuum Electronics Research
- Advanced Antenna and Metasurface Technologies
- Particle Accelerators and Free-Electron Lasers
- Metamaterials and Metasurfaces Applications
- Internet of Things and Social Network Interactions
- Particle accelerators and beam dynamics
- Photonic Crystals and Applications
- Thermal Radiation and Cooling Technologies
Pohang University of Science and Technology
2014-2025
Pohang Accelerator Laboratory
2014
The unique characteristics of metasurfaces to precisely control the amplitude, phase, and polarization light within a thin, flat footprint make them promising replacement for bulky optical components. However, fabrication methods conventional have suffered from low throughput high costs, limiting scalability practical application. To address these challenges, an advanced technique is developed by combining deep-ultraviolet argon fluoride photolithography with wafer-scale nanotransfer...
After three years of upgrading work, PLS-II (S. Shin, Commissioning the PLS-II, JINST, January 2013) is now successfully operating. The top-up operation 3 GeV linear accelerator had to be delayed because some challenges encountered, and was run in decay mode at beginning March 2012. main difficulties encountered are different levels between storage ring, 14 narrow gap in-vacuum undulators operation, full energy injection by accelerator. Large vertical emittance jitter linac were major...