10 papers
All-optical switching of nonlinear structured light in crystal-engineered van der Waals materials
Paolo Valisa, Marc Richstaetter, Bianca Sanfilippo +9
The orbital angular momentum (OAM) of light is a discrete, unbounded degree of freedom that underpins mode-multiplexed communications and high-dimensional quantum photonics. Yet, d…
Nonequilibrium dynamics of high energy transitions in monolayer WSe
Oleg Dogadov, Jorge Cervantes-Villanueva, Nicholas Olsen +6
High-energy optical transitions in monolayer transition-metal dichalcogenides exhibit characteristics that are markedly distinct from those of lower-lying band-edge excitons. These…
Excitonic Mott transition without population inversion
Oleg Dogadov, Armando Genco, Allison R. Cadore +12
Exciton dissociation via the excitonic Mott transition (EMT) governs the high-density optical response of semiconductors and sets fundamental limits for optoelectronic devices. The…
Tracking the photoinduced dynamics of a dark excitonic state in single-layer WS via resonant Autler-Townes splitting
Angela Montanaro, Francesco Valiera, Francesca Giusti +10
Excitons in a monolayer transition metal dichalcogenide (1L-TMD) are highly bound states characterized by a Rydberg-like spectrum of discrete energy levels. Among these, states wit…
Dissecting intervalley coupling mechanisms in monolayer transition metal dichalcogenides
Oleg Dogadov, Henry Mittenzwey, Micol Bertolotti +8
Monolayer (1L) transition metal dichalcogenides (TMDs) provide a unique opportunity to control the valley degree of freedom of optically excited charge carriers due to the spin-val…
Purcell enhancement of photogalvanic currents in a van der Waals plasmonic self-cavity
Xinyu Li, Jesse Hagelstein, Gunda Kipp +23
Cavities provide a means to manipulate the optical and electronic responses of quantum materials by selectively enhancing light-matter interaction at specific frequencies and momen…