4 papers
Excimer Formation in Zinc-phthalocyanine Revealed using Ultrafast Electron Diffraction
Sebastian Hammer, Tristan L. Britt, Laurenz Kremeyer +4
The formation of excited dimer states, so called excimers, is an important phenomenon in many organic molecular semiconductors. In contrast to Frenkel exciton-polaron excited state…
A momentum-resolved view of polaron formation in materials
Tristan L Britt, Fabio Caruso, Bradley J Siwick
A combined experimental and computational methodology for interrogating the phonon contribution to polaron formation in real materials is developed. Using LiF as an example, we sho…
Ultrafast Electron Diffuse Scattering as a Tool for Studying Phonon Transport: Phonon Hydrodynamics and Second Sound Oscillations
Laurenz Kremeyer, Tristan L. Britt, Bradley J. Siwick +1
Hydrodynamic phonon transport phenomena, like second sound, have been observed in liquid Helium more than 50 years ago. More recently second sound has been observed in graphite at…
Extreme Lightwave Electron Field Emission from a Nanotip
Dominique Matte, Nima Chamanara, Lauren Gingras +4
We report on sub-cycle terahertz light-field emission of electrons from tungsten nanotips under extreme conditions corresponding to a Keldysh parameter . Local p…