Photoinduced coherent acoustic phonon dynamics inside Mott insulator Sr2IrO4 films observed by femtosecond X-ray pulses
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4980062
Abstract: We investigate the transient photoexcited lattice dynamics in a layered perovskite Mott insulator Sr2IrO4 film by femtosecond X-ray diffraction using a laser plasma-based X-ray source. The ultrafast structural dynamics of Sr2IrO4 thin films are determined… read more here.
Keywords: insulator sr2iro4; mott insulator; femtosecond ray; coherent acoustic ... See more keywords
Scattering of coherent acoustic phonons by silica nanoparticles reveals the 3D-morphology of cells in solution down to nanometer thicknesses
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Applied Physics"
DOI: 10.1063/5.0141168
Abstract: In this work, we show that the use of silica nanoparticles improves the imaging and 3D-morphological measurement down to nanometer thicknesses of fixed cells in solution with picosecond ultrasonics (PU). Synchronized ultrafast fs-laser pulses are… read more here.
Keywords: nanometer thicknesses; cell; cells solution; silica nanoparticles ... See more keywords
Generation and coherent control of terahertz acoustic phonons in superlattices of perovskite oxides
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abf86e
Abstract: We utilized transmission-type pump–probe technique to investigate coherent acoustic phonons in the superlattices of perovskite oxides such as SrIrO3/SrTiO3 and SrRuO3/SrTiO3. Because the films in the superlattices are of high-quality and their thicknesses are only… read more here.
Keywords: superlattices perovskite; acoustic phonons; coherent; coherent acoustic ... See more keywords
Launching Coherent Acoustic Phonon Wave Packets with Local Femtosecond Coulomb Forces.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.043001
Abstract: Generation and manipulation of coherent acoustic phonons enables ultrafast control of solids and has been exploited for applications in various acoustic devices. We show that localized coherent acoustic phonon wave packets can be launched by… read more here.
Keywords: coulomb; wave packets; phonon wave; coherent acoustic ... See more keywords
Suspended sediment flux statistics in unidirectional flow, using a pulse-coherent acoustic Doppler profiler
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4988135
Abstract: An experiment was conducted in the St. Anthony Falls Lab main channel flume, involving sand sediment (d50 = 0.4 mm) in unidirectional flow. The flow conditions were 1 m/s flow rate and 1 m depth,… read more here.
Keywords: unidirectional flow; acoustic doppler; pulse coherent; suspended sediment ... See more keywords