Quasi-phase-matching of high-order-harmonic generation using polarization beating in optical waveguides

TL;DR

This paper proposes a novel quasi-phase-matching scheme for high-harmonic generation using polarization beating in birefringent waveguides, enabling controlled modulation of harmonic output.

Contribution

It introduces a new method leveraging polarization beating in birefringent waveguides for quasi-phase-matching in high-harmonic generation, with detailed analysis of optimal conditions.

Findings

Polarization beating modulates harmonic generation periodically.

Optimal conditions for quasi-phase-matching are identified.

Harmonic intensity growth depends on experimental parameters.

Abstract

A scheme for quasi-phase-matching high-harmonic generation is proposed in which polarization beating within a hollow core birefringent waveguide modulates the generation of harmonics. The evolution of the polarization of a laser pulse propagating in a birefringent waveguide is calculated and is shown to periodically modulate the harmonic generation process. The optimum conditions for achieving quasi-phase-matching using this scheme are explored and the growth of the harmonic intensity as a function of experimental parameters is investigated.