Helicity-selective enhancement and polarization control of attosecond high harmonic waveforms driven by bichromatic circularly polarized laser fields

KM Dorney, JL Ellis, C Hernández-García… - Physical Review Letters, 2017 - APS
High harmonics driven by two-color counterrotating circularly polarized laser fields are a
unique source of bright, circularly polarized, extreme ultraviolet, and soft x-ray beams, where …

Photon Pathways and the Nonperturbative Scaling Law of High Harmonic Generation

M Vimal, M Luttmann, T Gadeyne, M Guer, R Cazali… - Physical Review Letters, 2023 - APS
High harmonic generation (HHG) has become a core pillar of attosecond science.
Traditionally described with field-based models, HHG can also be viewed in a parametric …

Ellipticity control of high-order harmonic generation with nearly orthogonal two-color laser fields

C Zhai, R Shao, P Lan, B Wang, Y Zhang, H Yuan… - Physical Review A, 2020 - APS
Elliptically polarized high-order harmonics opens a path toward the study of ultrafast
dynamics in circular dichroism of magnetic materials, chiral molecules, and electronic spin …

High harmonics with spatially varying ellipticity

JL Ellis, KM Dorney, DD Hickstein, NJ Brooks, C Gentry… - Optica, 2018 - opg.optica.org
We present a method of producing ultrashort pulses of circularly polarized extreme
ultraviolet (EUV) light through high-harmonic generation (HHG). HHG is a powerful tool for …

Generation of attosecond pulses with a controllable carrier-envelope phase via high-order frequency mixing

VA Birulia, MA Khokhlova, VV Strelkov - Physical Review A, 2022 - APS
Advancing table-top attosecond sources in brightness and pulse duration is of immense
interest and importance for an expanding sphere of applications. Recent theoretical studies …

Noncollinear enhancement cavity for record-high out-coupling efficiency of an extreme-UV frequency comb

C Zhang, SB Schoun, CM Heyl, G Porat, MB Gaarde… - Physical Review Letters, 2020 - APS
We demonstrate a femtosecond enhancement cavity with a crossed-beam geometry for
efficient generation and extraction of extreme-ultraviolet (XUV) frequency combs at a 154 …

Highly efficient XUV generation via high-order frequency mixing

MA Khokhlova, VV Strelkov - New Journal of Physics, 2020 - iopscience.iop.org
The efficient generation of the coherent XUV light via frequency conversion of intense laser
drivers is a problem of both fundamental and technological importance. Increasing the …

Macroscopic effects in generation of attosecond XUV pulses via high-order frequency mixing in gases and plasma

VA Birulia, MA Khokhlova, VV Strelkov - New Journal of Physics, 2024 - iopscience.iop.org
We theoretically study the generation of attosecond XUV pulses via high-order frequency
mixing (HFM) of two intense generating fields, and compare this process with the more …

High-order harmonic generation by two linearly polarized laser fields with an arbitrary angle between their polarization axes

D Habibović, W Becker, DB Milošević - Physical Review A, 2022 - APS
High-order harmonic generation by two linearly polarized fields that enclose an arbitrary
crossing angle θ is investigated using the strong-field approximation. We investigate the …

Interference effect in high-order harmonic generation from degenerate current-carrying orbitals of polyatomic molecules

D Wang, X Zhu, H Yuan, P Lan, P Lu - Physical Review A, 2020 - APS
When the molecules with degenerate current-carrying orbitals are exposed to the
bichromatic counterrotating circularly polarized (BCCP) laser fields, the destructive …