Terahertz Radiation Source in Air Based on Bifilamentation of Femtosecond Laser Pulses

Yi Liu; Aurélien Houard; Selcuk Akturk; André Mysyrowicz; Vladimir Tikhonchuk

Terahertz Radiation Source in Air Based on Bifilamentation of Femtosecond Laser Pulses

Yi Liu ¹ Aurélien Houard ¹ Selcuk Akturk ¹ André Mysyrowicz ^{1, *} Vladimir Tikhonchuk ²

* Corresponding author

2 CELIA - Centre d'Etudes Lasers Intenses et Applications

Abstract : A new terahertz (THz) source in air based on the bifilamentation of femtosecond laser pulses is reported. This THz radiation is 1 order of magnitude more intense than the transition-Cherenkov THz emission from femtosecond laser filaments reported recently and shows different angular and polarization properties. We attribute it to the emission from a bimodal transmission line created by two plasma filaments.

Keywords : filamentation terahertz nonlinear optics

Document type :

Journal articles

Domain :

Physics [physics] / Physics [physics] / Optics [physics.optics]

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https://hal-polytechnique.archives-ouvertes.fr/hal-00455116
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Submitted on : Friday, March 5, 2010 - 7:12:15 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM
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Terahertz Radiation Source in Air Based on Bifilamentation of Femtosecond Laser Pulses

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