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Efficient generation of third harmonic radiation in air filaments: A revisit
Abstract : In this paper we revisit the third harmonic generation from a femtosecond laser filament in air and its significant enhancement (~ 100 times) with a intercepting pump pulse, which has been reported very recently. The enhanced third harmonic is studied as a function of the pulse polarization, time delay between the pump and signal pulses, laser pulse energy, etc. We provide an explanation for the enhancement of third harmonic based on a quenching of interference effects present near filamentation threshold. Simulations based on a two-color propagation code reproduce well the experimental observations and confirm our interpretation.
Cited literature [11 references]
https://hal-polytechnique.archives-ouvertes.fr/hal-00852025
Contributor : Aurélien Houard <>
Submitted on : Wednesday, September 4, 2013 - 12:08:44 PM
Last modification on : Friday, June 26, 2020 - 2:00:03 PM
Long-term archiving on: : Thursday, December 5, 2013 - 2:50:08 AM
Contributor : Aurélien Houard <>
Submitted on : Wednesday, September 4, 2013 - 12:08:44 PM
Last modification on : Friday, June 26, 2020 - 2:00:03 PM
Long-term archiving on: : Thursday, December 5, 2013 - 2:50:08 AM
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