147 citations · 1.1k across the 56 of their papers we have counts for
4 papers · 1 filter
Selective enhancement of coherent optical phonons using THz-rate pulse train
Muneaki Hase, Tetsuya Itano, Kohji Mizoguchi +1
Selective enhancement of coherent optical phonons in Bi-Sb mixed crystals has been performed using terahertz (THz) rate pulse trains generated by spatial phase modulation of femtos…
Ultrafast vibrational motion of carbon nanotubes in different pH environments
Kotaro Makino, Atsushi Hirano, Kentaro Shiraki +2
We have used a femtosecond pump-probe impulsive Raman technique to explore the ultrafast dynamics of micelle suspended single walled carbon nanotubes (SWNTs) in various pH environm…
Forcibly driven coherent soft phonons in GeTe with intense THz-rate pump fields
Muneaki Hase, Masahiro Kitajima, Shin-ichi Nakashima +1
We propose an experimental technique to generate large amplitude coherent phonons with irradiation of THz-rate pump pulses and to study the dynamics of phase transition in GeTe fer…
Ultrafast dephasing of coherent optical phonons in atomically controlled GeTe/SbTe superlattices
Muneaki Hase, Yoshinobu Miyamoto, Junji Tominaga
Femtosecond dynamics of coherent optical phonons in GeTe/SbTe superlattices (SLs), a new class of semiconductor SLs with three different states, have been investigated…