396 citations · 1.3k across the 22 of their papers we have counts for
23 papers
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…
Highly Efficient Exciton Modulation in MoSe/PdSe Heterostructures
Petr Rozhin, Emma Contin, Danae Katrisioti +15
Controlling exciton recombination in atomically thin semiconductors is central to their optoelectronic functionality, as the competition between radiative and non-radiative decay c…
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…
Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors
Armando Genco, Charalambos Louca, Cristina Cruciano +14
Ultrafast all-optical logic devices based on nonlinear light-matter interactions hold the promise to overcome the speed limitations of conventional electronic devices. Strong coupl…
Time-domain observation of interlayer exciton formation and thermalization in a MoSe/WSe heterostructure
Veronica R. Policht, Henry Mittenzwey, Oleg Dogadov +11
Vertical heterostructures (HS) of transition metal dichalcogenides (TMDs) host interlayer excitons (ILX), with electrons and holes residing in different layers. With respect to the…
Strong Coupling of Coherent Phonons to Excitons in Semiconducting Monolayer MoTe
Charles J. Sayers, Armando Genco, Chiara Trovatello +8
The coupling of the electron system to lattice vibrations and their time-dependent control and detection provides unique insight into the non-equilibrium physics of semiconductors.…
Spectrally resolving the phase and amplitude of coherent phonons in the charge density wave state of 1-TaSe
Charles J. Sayers, Stefano Dal Conte, Daniel Wolverson +4
The excitation and detection of coherent phonons has given unique insights into condensed matter, in particular for materials with strong electron-phonon coupling. We report a stud…
Nonlinear interactions of dipolar excitons and polaritons in MoS2 bilayers
Charalambos Louca, Armando Genco, Salvatore Chiavazzo +12
Nonlinear interactions between excitons strongly coupled to light are key for accessing quantum many-body phenomena in polariton systems. Atomically-thin two-dimensional semiconduc…
Femtosecond phononic coupling to both spins and charges in a room temperature antiferromagnetic semiconductor
D. Bossini, S. dal Conte, M. Terschanski +7
Spintronics is postulated on the possibility to employ the magnetic degree of freedom of electrons for computation and couple it to charges. In this view, the combination of the hi…
Exciton-phonon coupling strength in single-layer MoSe2 at room temperature
Donghai Li, Chiara Trovatello, Stefano Dal Conte +6
Single-layer transition metal dichalcogenides are at the center of an ever increasing research effort both in terms of fundamental physics and applications. Exciton-phonon coupling…
Tunable broadband light emission from graphene
Lavinia Ghirardini, Eva A. A. Pogna, Giancarlo Soavi +12
Graphene is an ideal material for integrated nonlinear optics thanks to its strong light-matter interaction and large nonlinear optical susceptibility. Graphene has been used in op…
Anisotropic complex refractive indices of atomically thin materials: determination of the optical constants of few-layer black phosphorus
Aaron M. Ross, Giuseppe M. Paternò, Stefano Dal Conte +2
In this work we briefly review the studies of the optical constants of monolayer transition metal dichalcogenides and few layer black phosphorus, with particular emphasis to the co…
Broadband, electrically tuneable, third harmonic generation in graphene
G. Soavi, G. Wang, H. Rostami +16
Optical harmonic generation occurs when high intensity light (W/m) interacts with a nonlinear material. Electrical control of the nonlinear optical response enables…
Photo-Induced Bandgap Renormalization Governs the Ultrafast Response of Single-Layer MoS2
Eva A. A. Pogna, Margherita Marsili, Domenico De Fazio +9
Transition metal dichalcogenides (TMDs) are emerging as promising two-dimensional (2d) semiconductors for optoelectronic and flexible devices. However, a microscopic explanation of…
Non equilibrium optical properties in semiconductors from first--principles: a combined theoretical and experimental study of bulk silicon
Davide Sangalli, Stefano Dal Conte, Cristian Manzoni +2
The calculation of the equilibrium optical properties of bulk silicon by using the Bethe--Salpeter equation solved in the Kohn--Sham basis represents a cornerstone in the developme…
Resonant optical control of the structural distortions that drive ultrafast demagnetization in CrO
Vera G. Sala, Stefano Dal Conte, Timothy A. Miller +5
We study how the color and polarization of ultrashort pulses of visible light can be used to control the demagnetization processes of the antiferromagnetic insulator CrO. W…
Mottness at finite doping and charge-instabilities in cuprates
Simone Peli, Stefano Dal Conte, Riccardo Comin +12
The intrinsic instability of underdoped copper oxides towards inhomogeneous states is one of the central puzzles of the physics of correlated materials. The influence of the Mott p…
Macrospin Dynamics in Antiferromagnets Triggered by Sub-20 femtosecond Injection of Nanomagnons
D. Bossini, S. Dal Conte, Y. Hashimoto +5
The understanding of how the sub-nanoscale exchange interaction evolves in macroscale correlations and ordered phases of matter, such as magnetism and superconductivity, requires t…
Witnessing the formation and relaxation of massive quasi-particles in a strongly correlated electron system
Fabio Novelli, Giulio De Filippis, Vittorio Cataudella +17
The non-equilibrium semiconductors physics is based on the paradigm that different degrees of freedom interact on different timescales. In this context the photo-excitation is ofte…
Temperature dependence of the thermal boundary resistivity of glass-embedded metal nanoparticles
Francesco Banfi, Vincent Juvé, Damiano Nardi +5
The temperature dependence of the thermal boundary resistivity is investigated in glass-embedded Ag particles of radius 4.5 nm, in the temperature range from 300 to 70 K, using all…
Evidence of a photoinduced non-thermal superconducting-to-normal-state phase transition in overdoped BiSrCaYCuO
G. Coslovich, C. Giannetti, F. Cilento +9
Here we report extensive ultrafast time-resolved reflectivity experiments on overdoped BiSrCaYCuO single crystals (T=78 K) aimed to clarif…
First evidence of transient interactions between optical excitations and image potential states in graphite
M. Montagnese, S. Pagliara, S. Dal Conte +3
Here we report the experimental evidence of the interactions between the excitations of the optical transition and the image potential states (IPS) of highly oriented pyr…
Ultrafast insulator-to-metal phase transition as a switch to measure the spectrogram of a supercontinuum light pulse
Federico Cilento, Claudio Giannetti, Gabriele Ferrini +6
In this letter we demonstrate the possibility to determine the temporal and spectral structure (spectrogram) of a complex light pulse exploiting the ultrafast switching character o…