Mode-selective phonon excitation in gallium nitride using mid-infrared free-electron laser

Muneyuki Kagaya, Kyohei Yoshida, Heishun Zen, Kan Hachiya, Takashi Sagawa, Hideaki Ohgaki
2017 Japanese Journal of Applied Physics  
doi:10.7567/jjap.56.022701 fatcat:vbmhbsgms5hzfjdzrsyeb27tnu