High-Harmonic Generation from Monolayer and Bilayer Graphene
arXiv:2011.12252 · doi:10.1103/PhysRevB.103.094308
Abstract
High-harmonic generation (HHG) in solids is an emerging method to probe ultrafast electron dynamics in solids at attosecond timescale. In this work, we study HHG from monolayer and bilayer graphene. Bilayer graphenes with AA and AB stacking are considered in this work. It is found that the monolayer and bilayer graphenes exhibit significantly different harmonic spectra. The difference in the spectra is attributed to the interlayer coupling between the two layers. Also, the intraband and interband contributions to the total harmonic spectrum play a significant role. Moreover, interesting polarization and ellipticity dependence are noticed in total harmonic spectrum for monolayer and bilayer graphene.
8 pages, 6 figures
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- Controlling Valley-Polarisation in Graphene via Tailored Light Pulses
- Gate-tunable quantum pathways of high harmonic generation in graphene
- Efficient high-harmonic generation in graphene with two-color laser field at orthogonal polarization
- Generation of Circularly-Polarised High-Harmonics with Identical Helicity in Two-Dimensional Materials
- All-Optical Ultrafast Valley Switching in Two-Dimensional Materials
- Optical high harmonic generation in Dirac materials
- Probing phonon-driven symmetry alterations in graphene via high-harmonic spectroscopy
- How massless are Weyl fermions in Weyl semimetals?
- Photocurrent generation in solids via linearly polarized laser
- Tailoring Photocurrent in Weyl Semimetals via Intense Laser Irradiation
- Optical Control of Ultrafast Photocurrent in Graphene
- Nonlinear Optical Spectroscopy of Nodal-Line Semimetals