Dynamics of third harmonic yield from a femtosecond laser filament in air

Author

Yi Liu ; Brelet, Y. ; Mitryukovskiy, Sergey ; Houard, Aurelien ; Couairon, A. ; Mysyrowicz, A.

Author_Institution

Lab. d´Opt. Appl., Ecole Polytech., Palaiseau, France

fYear

2013

fDate

12-16 May 2013

Firstpage

1

Lastpage

1

Abstract

Efficient third harmonic (TH) can be generated when an intense infrared (IR) femtosecond laser pulse is focused in ambient air. This method provides an extremely simple and robust way to obtain ultrashort pulse in the UV regime. From the point view of applications, high conversion efficiency is always desired. However, up to now the optimal conditions for this conversion process is not clear. In this work, the TH yield from a femtosecond filament in the parameter space of incident pulse energy, focusing geometry, and air pressure is studied.

Keywords

high-speed optical techniques; optical focusing; optical harmonic generation; plasma light propagation; UV regime; air pressure; ambient air; conversion efficiency; femtosecond laser filament; focusing geometry; incident pulse energy; intense infrared femtosecond laser pulse; third harmonic yield; ultrashort pulse; Focusing; Geometry; Harmonic analysis; Laser beams; Lasers; Lenses; Plasmas;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference

Conference_Location

Munich

Print_ISBN

978-1-4799-0593-5

Type

conf

DOI

10.1109/CLEOE-IQEC.2013.6801104

Filename

6801104