303 citations · 3.1k across the 72 of their papers we have counts for
6 papers · 1 filter
Probing valley population imbalance in transition metal dichalcogenides via temperature-dependent second harmonic generation imaging
Leonidas Mouchliadis, Sotiris Psilodimitrakopoulos, George Miltos Maragkakis +5
Degenerate minima in momentum space - valleys - provide an additional degree of freedom that can be used for information transport and storage. Notably, such minima naturally exist…
Twist Angle mapping in layered WS2 by Polarization-Resolved Second Harmonic Generation
Sotiris Psilodimitrakopoulos, Leonidas Mouchliadis, Ioannis Paradisanos +4
Stacked atomically thin transition metal dichalcogenides (TMDs) exhibit fundamentally new physical properties compared to those of the individual layers. The twist angle between th…
Room temperature observation of biexcitons in exfoliated WS2 monolayers
I. Paradisanos, S. Germanis, N. T. Pelekanos +4
Single layers of WS2 are direct gap semiconductors with high photoluminescence (PL) yield holding great promise for emerging applications in optoelectronics. The spatial confinemen…
Dynamics of ripple formation on silicon surfaces by ultrashort laser pulses in sub-ablation conditions
George D. Tsibidis, Marios Barberoglou, Panagiotis A. Loukakos +2
An investigation of ultrashort pulsed laser induced surface modification due to conditions that result in a superheated melted liquid layer and material evaporation are considered.…
Size distribution of Au NPs generated by laser ablation of a gold target in liquid with time-delayed femtosecond pulses
E. Axente, M. Barberoglou, P. G. Kuzmin +5
The influence of delay-time between two sequential femtosecond pulses on the properties of nanoparticles obtained via laser ablation of gold in ethanol has been studied. The morpho…
Laser-assisted coloration of Ti: oxides or nanostructures?
E. V. Barmina, E. Stratakis, C. Fotakis +1
Coloration of a Ti target under its ablation with picosecond laser pulses in liquids is ascribed to the formation of self-organized nanostructures. The density of nanostructures in…