75 citations · 193 across the 5 of their papers we have counts for
5 papers
Enhanced high-order harmonics through periodicity breaks: from backscattering to impurity states
Chuan Yu, Ulf Saalmann, Jan M. Rost
Backscattering of delocalized electrons has been recently established [Phys. Rev. A 105, L041101 (2022)] as a mechanism to enhance high-order harmonic generation (HHG) in periodic…
High harmonics from backscattering of delocalized electrons
Chuan Yu, Ulf Saalmann, Jan M. Rost
It is shown that electron backscattering can enhance high-harmonic generation in periodic systems with broken translational symmetry. Paradigmatically, we derive for a finite chain…
Crystal-momentum-resolved contributions to multiple plateaus of high-order harmonic generation from band-gap materials
Chuan Yu, Hossein Iravani, Lars Bojer Madsen
We study the crystal-momentum-resolved contributions to the high-order harmonic generation (HHG) in band-gap materials, and identify the relevant initial crystal momenta for the fi…
Subradiant Dimer Excitations of Emitter Chains Coupled to a 1D Waveguide
Yu-Xiang Zhang, Chuan Yu, Klaus Mølmer
This Letter shows that chains of optical or microwave emitters coupled to a 1D waveguide support subradiant states with close pairs of excited emitters, which have longer lifetimes…
Enhanced high-order harmonic generation in donor-doped band-gap materials
Chuan Yu, Kenneth K. Hansen, Lars Bojer Madsen
We find that a donor-doped band-gap material can enhance the overall high-order harmonic generation (HHG) efficiency by several orders of magnitude, compared with undoped and accep…