Work

Modeling and Optimization of Cascaded Four-Wave Mixing toward the VUV in Xenon-Filled Negative-Curvature Fibers

Year: 2026

Type: preprint

Abstract: In this work, we thoroughly characterize third- and fourth-harmonic generation through cascaded four-wave mixing in a xenon-filled negative-curvature hollow-core fiber operated under a pressure gradient. The experimental results are supported by both a semi-analytical model and numerical simulations, which accurately reproduce the pressure dependence of the harmonic conversion. We identify the optimum pressure conditions for third and fourth-harmonic generation and experimentally observe the cascaded four-wave-mixing process extending into the vacuum ultraviolet (VUV), up to the sixth harmonic at 172 nm, with the accessible spectral range limited by the available VUV filter.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2609.00223

Authors: Rosa, Jose Otavio, Gérôme, Frédéric, Benabid, Fetah, Osório, Jonas H., Siqueira, Jonathas de Paula

Institutions: Universidade Estadual de Campinas (UNICAMP), Centre National de la Recherche Scientifique, XLIM, Université de Limoges, Universidade Federal de Lavras

Language: English

Topic: Photonic Crystal and Fiber Optics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação de Amparo à Pesquisa do Estado de Minas Gerais

Awards: G1516330776, G2370180909, Development of ultrashort pulse sources in the vacuum ultraviolet and terahertz for spectroscopy of advanced materials, DESENVOLVIMENTO DE NOVAS PLATAFORMAS DE SENSORIAMENTO INTEGRANDO FIBRAS ÓPTICAS E MANUFATURA ADITIVA, REDE MINEIRA DE PESQUISA EM SISTEMAS VÍTREOS E APLICAÇÕES PARA SENSORIAMENTO, DESENVOLVIMENTO DE NOVOS SENSORES E DISPOSITIVOS UTILIZANDO FIBRAS ÓPTICAS E POLÍMEROS

OpenAlex ID: W7206199887

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