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Journal articles
Modifications of filament spectra by shaped octave-spanning laser pulses
Abstract : In this paper we examine the spectral changes in a white light laser filament due to different pulse shapes generated by a pulse-shaping setup. We particularly explore how the properties of the filament spectra can be controlled by parametrically tailored white light pulses. The experiments are carried out in a gas cell with up to 9 bars of argon. Plasma generation and self-phase modulation strongly affect the pulse in the spectral and temporal domains. By exploiting these effects we show that the pulse spectrum can be modified in a desired way by either using second-order parametric chirp functions to shift the filament spectrum to higher or lower wavelengths, or by optimizing pulse shapes with a genetic algorithm to generate more complex filament spectra. This paper is an example of the application of complex, parametrically shaped white light pulses.
https://hal-univ-lyon1.archives-ouvertes.fr/hal-02290281
Contributor : Depot 3 Lyon 1 <>
Submitted on : Tuesday, September 17, 2019 - 3:14:34 PM
Last modification on : Thursday, October 15, 2020 - 8:54:04 AM
Contributor : Depot 3 Lyon 1 <>
Submitted on : Tuesday, September 17, 2019 - 3:14:34 PM
Last modification on : Thursday, October 15, 2020 - 8:54:04 AM
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