Crystallinity in periodic nanostructure surface on Si substrates induced by near- and mid-infrared femtosecond laser irradiation
R. Miyagawa, D. Kamibayashi, H. Nakamura, M. Hashida, H. Zen, T. Somekawa, T. Matsuoka, H. Ogura, D. Sagae, Y. Seto, T. Shobu, A. Tominaga, O. Eryu, and N. Ozaki, Scientific Reports 12, 20955 (2022).

Degradation of Lignin by Infrared Free Electron Laser
T. Kawasaki, H. Zen, T. Sakai, Y. Sumitomo, K. Nogami, K. Hayakawa, T. Yaji, T. Ohta, T. Nagata, Y. Hayakawa, Polymers, 14, 2401 (2022).

Peak Shift of Coherent Edge Radiation Spectrum Depending on Radio Frequency Field Phase of Accelerator
N. Sei, H. Zen and H. Ohgaki, Applied Sciences, 12, 626 (2022).

Enhancement of Oxidation of Silicon Carbide Originating from Stacking Faults Formed by Mode-Selective Phonon Excitation Using a Mid-Infrared Free Electron Laser
Y. Maeda, H. Zen, A. Kitada, K. Murase, and K. Fukami, Journal of Physical Chemistry Letters, 13, 2956-2962 (2022).