Monolayer transition metal dichalcogenides present the opportunity to manipulate quantum states of matter via ultrafast laser pulses, permitting, for example, observation of the phase transition from trivial to topological insulator. However, the nature of ultrafast pulses are far removed from the theoretical assumptions used to model these phenomena.
We have used ultrafast pump-probe spectroscopy to observe the influence of an ultrashort laser pulse on the coherent response of monolayers of MoS2 and WS2 to investigate how an ultrashort pulse may cause the system to deviate from the behaviour expected from theoretical predictions.
Scandium oxide is an attractive candidate for the engineering of interference coatings, although not widely explored.
This paper describes the ion beam sputtering of Sc2O3. It is shown that the structural properties of the material are
affected by the deposition conditions. Laser damage in different regimes of pulsewidths is investigated. These results
show that the 1-on-1 laser damage fluence, in both the thermal and deterministic regimes, varies with deposition
conditions but this is not the case for S-on-1, indicating that laser-induced defects are important.
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