Soliton mode of terahertz radiation generation using picosecond laser pulses with tilted wave fronts

The soliton-like mode for highly efficient generation of terahertz radiation in a quadratically nonlinear medium by means of optical pulses with tilted wave fronts is investigated. For optical and terahertz pulses, a system of the Zakharov–Boussinesq type equations describing the process of generati...

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Bibliographic Details
Published in:Laser physics letters 2022-02, Vol.19 (2), p.25401
Main Authors: Sazonov, S V, Ustinov, N V
Format: Article
Language:English
Subjects:
extremely short pulse
optical nonlinearity
optical-terahertz soliton
tilted wave fronts
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Summary:The soliton-like mode for highly efficient generation of terahertz radiation in a quadratically nonlinear medium by means of optical pulses with tilted wave fronts is investigated. For optical and terahertz pulses, a system of the Zakharov–Boussinesq type equations describing the process of generation at arbitrary angles of the tilt of wave fronts is derived. Various cases of the soliton generation are analyzed. It is shown that the tilt of wave fronts is fundamental for the formation of the optical-terahertz solitons of a new type, which we call dispersionless solitons.
ISSN:1612-2011
1612-202X
DOI:10.1088/1612-202X/ac4914