Nonlinear valley selection rules and all-optical probe of broken time-reversal symmetry in monolayer WSe2

P Herrmann, S Klimmer, T Lettau, T Weickhardt… - Nature …, 2025 - nature.com
In monolayer transition metal dichalcogenides, time-reversal symmetry—combined with
broken space-inversion symmetry—defines the spin–valley degree of freedom. As such, the …

Nonclassical light generation and control from laser-driven semiconductor intraband excitations

I Gonoskov, R Sondenheimer, C Hünecke, D Kartashov… - Physical Review B, 2024 - APS
The generation of higher-order harmonic radiation originating from the interaction of intense
laser pulses with matter is typically described semiclassically: While the electronic structure …

Interlayer coupling effect in high-order harmonic generation of the phosphorene/graphene heterostructure

Y Zhang, H Yu, M Zhang, MS Si, S Xue, H Du - Physical Review A, 2024 - APS
Heterostructures introduce additional degrees of freedom to two-dimensional materials,
providing an alternative way to manipulate solid high-order harmonic generation (HHG) …

Giant DC-like residual current generated by subcycle laser pulses

A Seith, F Evers, J Wilhelm - Physical Review Research, 2024 - APS
Experimental indications have been reported suggesting that laser pulses shining on
materials with relativistic dispersion can produce currents that survive long after the …