142 citations · 970 across the 19 of their papers we have counts for
19 papers
Attosecond-resolved coherent control of zone-folded acoustic phonons in silicon carbide
Hiromu Matsumoto, Tsukasa Maruhashi, Yosuke Kayanuma +3
Zone-folded acoustic phonons (6 THz) in 4H silicon carbide (SiC) have been coherently excited using a femtosecond near-infrared pulse and measured through transient reflectivity wi…
Dual role of longitudinal optical phonons for generation of coherent oscillations in gallium arsenide under optical pumping
Itsuki Takagi, Yuma Konno, Yosuke Kayanuma +1
We present a novel and simple picture of the generation dynamics of coherent longitudinal optical (LO) phonons and LO-phonon-plasmon-coupled (LOPC) modes by the ultrafast infrared…
Floquet-Landau-Zener interferometry: Usefulness of the Floquet theory in pulse-laser-driven systems
Tatsuhiko N. Ikeda, Satoshi Tanaka, Yosuke Kayanuma
We develop the Landau-Zener transfer matrix theory for the instantaneous Floquet states (IFSs) for quantum systems driven by strong pulse lasers. Applying this theory to the pulse…
Transmission of a single electron through a Berry's ring
Maseim B. Kenmoe, Yosuke Kayanuma
A theoretical model of transmission and reflection of an electron with spin is proposed for a mesoscopic ring with rotating localized magnetic moment. This model may be realized in…
Coherent control of 40-THz optical phonons in diamond using femtosecond optical pulses
Tetsuya Kimata, Kazuma Yoda, Hana Matsumoto +4
Coherent control is an optical technique to manipulate quantum states of matter. The coherent control of 40-THz optical phonons in diamond was demonstrated by using a pair of sub-1…
Ultrafast Quantum-path Interferometry Revealing the Generation Process of Coherent Phonons
Kazutaka G. Nakamura, Kensuke Yokota, Yuki Okuda +5
Optical dual-pulse pumping actively creates quantum-mechanical superposition of the electronic and phononic states in a bulk solid. We here made transient reflectivity measurements…