8 citations · 13 across the 4 of their papers we have counts for
4 papers
Ultrasound-propelled nano- and microspinners
Johannes Voß, Raphael Wittkowski
We study nonhelical nano- and microparticles that, through a particular shape, rotate when they are exposed to ultrasound. Employing acoustofluidic computer simulations, we investi…
Acoustic propulsion of nano- and microcones: dependence on particle size, acoustic energy density, and sound frequency
Johannes Voß, Raphael Wittkowski
Employing acoustofluidic simulations, we study the propulsion of cone-shaped nano- and microparticles by a traveling ultrasound wave. In particular, we investigate how the acoustic…
X-ray Free Electron Laser Studies of Electron and Phonon Dynamics of Graphene Adsorbed on Copper
Hirohito Ogasawara, Han Wang, Jörgen Gladh +23
We report optical pumping and X-ray absorption spectroscopy experiments at the PAL free electron laser that directly probe the electron dynamics of a graphene monolayer adsorbed on…
Acoustic propulsion of nano- and microcones: dependence on the viscosity of the surrounding fluid
Johannes Voß, Raphael Wittkowski
This article investigates how the acoustic propulsion of cone-shaped colloidal particles that are exposed to a traveling ultrasound wave depends on the viscosity of the fluid surro…