Control of attosecond light polarization in two-color bi-circular fields

Abstract

We develop theoretically and confirm both numerically and experimentally a comprehensive analytical model which describes the propensity rules in the emission of circularly polarized high harmonics by systems driven by two-color counter-rotating fields, a fundamental and its second harmonic. We identify and confirm the three propensity rules responsible for the contrast between the 3N+1 and 3N+2 harmonic lines in the HHG spectra of noble gas atoms. We demonstrate how these rules depend on the laser parameters and how they can be used in the experiment to shape the polarization properties of the emitted attosecond pulses.

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Cited by in corpus (12)

• Conservation of torus-knot angular momentum in high-order harmonic generation
• The Application of Tailored Fields for Studying Chirality and Symmetry
• Theory of entanglement and measurement in high harmonic generation
• Strong-field approximation in a rotating frame: High-order harmonic emission from p states in bicircular fields
• Control of helicity of high-harmonic radiation using bichromatic circularly polarized laser fields
• Strong-field control and enhancement of chiral response in bi-elliptical high-order harmonic generation: an analytical model
• Control of the helicity of high-order harmonics generated by bicircular field
• Controlling polarization of attosecond pulses with plasmonic-enhanced bichromatic counter-rotating circularly polarised fields
• Revealing laser-coherent electron features using phase-of-the-phase spectroscopy
• The imaginary part of the high-harmonic cutoff
• Evidence of ac-Stark-shifted resonances in intense two-color circularly polarized laser fields
• Polarization control of attosecond pulses using bi-chromatic elliptically polarized laser