Generation of circularly polarized high harmonics with identical helicity in two-dimensional materials

N Rana, MS Mrudul, G Dixit - Physical Review Applied, 2022 - APS
Generation of circularly polarized high harmonics with the same helicity to all orders is
indispensable for chiral-sensitive spectroscopy with attosecond temporal resolution. Solid …

Controlling valley-polarisation in graphene via tailored light pulses

MS Mrudul, G Dixit - Journal of Physics B: Atomic, Molecular and …, 2021 - iopscience.iop.org
Analogous to charge and spin, electrons in solids endows an additional degree of freedom:
the valley pseudospin. Two-dimensional hexagonal materials such as graphene exhibit two …

Probing the spin-orbit time delay of multiphoton ionization of Kr by bicircular fields

P Ge, Y Fang, Z Guo, X Ma, X Yu, M Han, C Wu… - Physical Review Letters, 2021 - APS
We study multiphoton ionization of Kr atoms by circular 400-nm laser fields and probe its
photoelectron circular dichroism with the weak corotating and counterrotating circular fields …

Multielectron effect for high-order harmonic generation from molecule irradiated by bichromatic counter-rotating circularly polarized laser pulses

SS Zhou, YJ Yang, FM Guo, JG Chen… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
We investigated high-order harmonic generation in molecules N 2 and C 6 H 6 irradiated by
bichromatic counter-rotating circularly polarized laser pulses by using time-dependent …

Polarization control of attosecond pulses using bi-chromatic elliptically polarized laser

R Rajpoot, AR Holkundkar… - Journal of Physics B …, 2021 - iopscience.iop.org
We study the high harmonic generation (HHG) using elliptically polarized two-color driving
fields. The HHG via bi-chromatic counter-rotating laser fields is a promising source of …

Controlling polarization of attosecond pulses with plasmonic-enhanced bichromatic counter-rotating circularly polarized fields

IN Ansari, C Hofmann, L Medišauskas, M Lewenstein… - Physical Review A, 2021 - APS
The use of bichromatic counter-rotating laser field is known to generate high-order
harmonics with nonzero ellipticity. By combining such laser field with a plasmonic-enhanced …

High-order harmonic generation of the cyclo [18] carbon molecule irradiated by circularly polarized laser pulse

SS Zhou, YJ Yang, Y Yang, MY Suo, DY Li… - Chinese …, 2023 - iopscience.iop.org
High-order harmonic generation of the cyclo [18] carbon (C 18) molecule under few-cycle
circularly polarized laser pulse is studied by time-dependent density functional theory …

Attosecond charge migration in heterocyclic five-membered rings

S Giri, G Dixit, JC Tremblay - The European Physical Journal Special …, 2023 - Springer
This contribution presents numerical simulations of N-electron dynamics in heterocyclic five-
membered ring molecules to shed light on the effect of molecular symmetry on attosecond …

[HTML][HTML] Tailoring polarisation of attosecond pulses via co-rotating bicircular laser fields

R Rajpoot, AR Holkundkar, N Rana, G Dixit - Physics Letters A, 2024 - Elsevier
The present work introduces a robust way to generate attosecond pulses with tunable
ellipticity via high-order harmonic generation by co-rotating ω− 2 ω bicircular laser fields …

Conditions for perfect circular polarization of high-order harmonics driven by bichromatic counter-rotating laser fields

J Heslar, DA Telnov, SI Chu - Physical Review A, 2019 - APS
Recently, studies of high-order harmonic generation (HHG) from atoms driven by
bichromatic counter-rotating circularly polarized laser fields have received considerable …