Water vapor based dispersion management in a high-pressure gas cell. (November 2020)

• Record Type: Journal Article
• Authors: Panov, N A; Shipilo, D E; Kompanets, V O; Nikolaeva, I A; Chekalin, S V; Kosareva, O G
• Is Part Of: Journal of physics. Volume 1692(2020)
• Publication Date: 2020-11
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1692/1/012019
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We use a mixture of a high pressure gas with a minor (about 1 percent) addition of variable density water vapor to control group velocity dispersion of a near-infrared femtosecond pulse and switch it from normal to anomalous regime in the short-wavelength vicinity of the absorption band. We have shown numerically the formation of typical for anomalous dispersion O-wave frequency-angular spectrum with full suppression of conical emission on the short-wavelength side for 1.3-μm femtosecond pulse filamenting in the mixture of 30-bar nitrogen and 0.4-bar water vapor.