7 papers
Ultrafast configuration changes and anomalous diffusion of an aromatic adsorbate on rare-gas nanoparticles
Arne Morlok, Philipp Elsässer, Ulrich Bangert +5
Nanoparticles (NPs) exhibit tunable catalytic properties and serve as nanoreactors for controlled multimolecular chemistry. The kinetics and reactivity of such systems are critical…
Size characterization of neutral rare-gas clusters based on time-resolved polarization anisotropy measurements
Arne Morlok, Grzegorz Kowzan, Ulrich Bangert +3
The size determination of neutral clusters is experimentally challenging. In particular, weakly-bound rare-gas clusters tend to fragment upon ionization, resulting in systematic er…
Impact of interference between two infrared pulses driving high harmonic generation
Sarang Dev Ganeshamandiram, Jahanzeb Muhammad, Marvin Schmoll +4
Extreme ultraviolet (XUV) interferometry is technically challenging to implement. One approach to generating interference between two XUV pulses relies on driving high-harmonic gen…
Anisotropic fluorescence signals retarded dipole-dipole interactions in a thermal atomic cloud
Vyacheslav Shatokhin, Friedemann Landmesser, Mario Niebuhr +3
We experimentally observe and theoretically explain anisotropic multiple quantum coherence signals in the fluorescence from dilute thermal potassium vapors, at room temperature and…
A phase-modulation interferometer for intense, ultrashort, near infrared laser pulses
S. Ganeshamandiram, M. Niebuhr, F. Richter +4
The investigation of coherent phenomena in strong-field processes requires interferometric measurement schemes with high selectivity to disentangle the complex nonlinear response o…
Low-dispersive phase-modulated rapid scanning interferometry
Fabian Richter, Ulrich Bangert, Friedemann Landmesser +3
Time-domain interferometry is an important principle in Fourier transform (FT) and nonlinear femto- to attosecond spectroscopy. To optimize the resolution and sensitivity of this a…