Enhanced high-order harmonic generation from periodic potentials in inhomogeneous laser fields
arXiv:1605.02516 · doi:10.1103/PhysRevA.94.023419
Abstract
We theoretically study high-order harmonic generation (HHG) from solid-phase systems in spatially inhomogeneous strong laser fields originated by resonant plasmons within a metallic nanostructure. The intensity of the second plateau in HHG may be enhanced by two-three orders and be comparable with the intensity of the first plateau. This is due to bigger transition probabilities to higher conduction bands. It provides us a practical way to increase the yields of HHG with laser intensity below the damage threshold. It presents a promising way to triple the range of HHG spectra in experimental measurements. It also allows to generate intense isolated attosecond pulse from solids driven by few-cycle laser fields.
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- Nonadiabatic high-order harmonic generation from solids
- Insight into High-order Harmonic Generation from Solids: The Contributions of the Bloch Wave-packets Moving on the Group and Phase Velocities
- Probing dephasing time of crystals via spectral properties of high-harmonic generation
- Orientation-dependent transition rule in high-order harmonic generation from solids
- High-order harmonic generation from 2D periodic potentials in circularly and bichromatic circularly polarized laser fields
- Spectral caustics of high-order harmonics in one-dimensional periodic crystals
- Frequency-selective amplification of nonlinear response in strongly correlated bosons