Work

Simulating Cascaded Harmonics Generation up to the Sixth Order in β-BBO

Year: 2026

Type: article

Abstract: We simulate the generation of multiple harmonics up to the sixth order extending into vacuum ultraviolet. The harmonics are generated by χ(n):χ(m) cascades, containing second- or third-order perturbative nonlinear processes. We identify three additional phase-matching conditions beyond standard phase matching, namely when only the first step or only the second step of the cascades are phase-matched and when the non-phase-matched second or third harmonic produces quasi-phase matching for higher-order harmonics, causing an essential enhancement of the harmonic signals.

Source: Photonics

DOI: 10.3390/photonics13050436

Authors: Jozsef Seres, Enikoe Seres, Thorsten Schumm

Institution: TU Wien

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896