529 citations · 4.1k across the 44 of their papers we have counts for
44 papers
First-principles study of luminescence in hexagonal boron nitride single layer: exciton-phonon coupling and the role of substrate
Pierre Lechifflart, Fulvio Paleari, Davide Sangalli +1
Hexagonal boron nitride (hBN) is a wide band gap material with both strong excitonic light emission in the ultraviolet and strong exciton-phonon coupling. Luminescence experiments…
Exciton-Exciton transitions involving strongly bound excitons: an ab initio approach
D. Sangalli, M. D'Alessandro, C. Attaccalite
In pump-probe spectroscopy, two laser pulses are employed to garner dynamical information from the sample of interest. The pump initiates the optical process by exciting a portion…
Pressure Dependence of Electronic, Vibrational and Optical Properties of wurtzite-Boron Nitride
Martino Silvetti, Claudio Attaccalite, Elena Cannuccia
Wurtzite Boron Nitride (BN) is a wide band gap BN polymorph with peculiar mechanical properties (hardness and stiffness). After its first synthesis in 1963 as a transformation o…
Interlayer and intralayer excitons in AlN/WS heterostructure
C. Attaccalite, M. S. Prete, M. Palummo +1
Transition metal dichalcogenides (TMD) monolayers, holding potential as good sunlight absorbers, are promising materials for next-generation optoelectronic devices. They may enable…
Ultra-Broadband Visible and Infrared Light Generation Driven by Far Infrared Light in the Broad Region from 8μm to 240μm
Nils W. Rosemann, Robin C. Döring, Eike Dornsiepen +12
The most commonly used nonlinear optical process is the conversion of infrared light at 1064nm to green light at 532nm, as performed in common laser pointers. However, more relevan…
Nonlinear optical response of ferroelectric oxides: first-principles calculations within the time-domain and the frequency-domain
Christof Dues, Marius J. Müller, Sangam Chatterjee +2
The second and third order nonlinear susceptibilities of the ferroelectric oxides LiNbO, LiTaO, and KNbO are calculated from first principles. Two distinct methodologie…