903 citations · 7.9k across the 143 of their papers we have counts for
6 papers · 1 filter
Out of the dark and into the light: towards dark-state based chemical sensors
Maja Feierabend, Gunnar Berghäuser, Andreas Knorr +1
The rapidly increasing use of sensors throughout different research disciplines and the demand for more efficient devices with less power consumption depends critically on the emer…
Review on carrier multiplication in graphene
Ermin Malic, Torben Winzer, Florian Wendler +1
The remarkable gapless and linear band structure of graphene opens up new carrier relaxation channels bridging the valence and the conduction band. These Auger scattering processes…
Unconventional double-bended saturation of optical transmission in graphene due to many-particle interactions
Torben Winzer, Martin Mittendorff, Stephan Winnerl +3
We present a joint theory-experiment study on the transmission/absorption saturation after ultrafast pulse excitation in graphene. We reveal an unconventional double-bended saturat…
Proposal for a tunable graphene-based terahertz Landau-level laser
Samuel Brem, Florian Wendler, Ermin Malic
In the presence of strong magnetic fields the electronic bandstructure of graphene drastically changes. The Dirac cone collapses into discrete non-equidistant Landau levels, which…
Optical fingerprint of dark 2p-states in transition metal dichalcogenides
Gunnar Berghäuser, Andreas Knorr, Ermin Malic
We present a microscopic study on higher excitonic states in transition metal dichalcogenides in the presence of disorder. We show that the geometric phase cancels the degeneration…
Excitonic linewidth and coherence lifetime in monolayer transition metal dichalcogenides
Malte Selig, Gunnar Berghäuser, Archana Raja +7
Atomically thin transition metal dichalcogenides (TMDs) are direct-gap semiconductors with strong light-matter and Coulomb interaction. The latter accounts for tightly bound excito…