2024

Observation of selective excitation of Raman inactive phonon mode of strontium titanate through anti-Stokes hyper-Raman scattering process
J.Y.H. Bo, H. Zen, K. Yoshida, K. Hachiya, R. Akasegawa, and H. Ohgaki, Journal of Infrared, Millimeter, and Terahertz Waves (2024), https://doi.org/10.1007/s10762-024-01014-8

Investigating structural property of human hair by using infrared free electron lasers

T. Kawasaki, A. Nagase, K. Hayakawa, F. Teshima, K. Tanaka, H. Zen, A. Irizawa, T. Sakai, and Y. Hayakawa, Discover Applied Sciences, 6, 397 (2024).

Beam characterization of mid-infrared free electron laser to drive high-harmonic generation
K. Kawase, H. Zen, T. Sakai, Y. Hayakawa, H. Ohgaki, and R. Hajima, Japanese Journal of Applied Physics, 63, 072001 (2024).

Breakdown of argon by a train of high-repetition long-wave-infrared pulses from a free-electron laser oscillator

R. Hajima, K. Kawase, J.K. Koga, H. Zen, and H. Ohgaki,  Optics Express, 32, pp. 22722-22737 (2024).

Molphological study of depth-controlled high quality holes and lines fabricated on a metal substrate with a thin metal film by picosecond laser pulses
K. Sota, K. Ando, H. Zen, T. Kii, H. Ohgaki, and T. Nakajima, Optics & Laser Technology, 175, 110853 (2024).

Carrier-envelope phase stabilization in FEL oscillators
R. Hajima, K. Kawase, H. Zen, and H. Ohgaki, Journal of Physics: Conference Series, 2687, 032013 (2024).

Infrared free electron laser-irradiated polyleucine does not exert aggregates-induced aversive effects on mouse brain
A. Mori, T. Shiroishi, J. Fujioka, T. Nakajima, S. Mitsui, H. Suginoma, Y. Kakuta, H. Zen, and K. Nakamura, Brain Disorders, 14, 100137 (2024).