Group velocity dispersion effect on the collapse of femtosecond laser pulses in air: a revised form for Marburger’s law

Suyu Li; and Mingxing

doi:10.3788/COL201513.121901

Journals >Chinese Optics Letters >Volume 13 >Issue 12 >Page 121901 > Article

Chinese Optics Letters
Vol. 13, Issue 12, 121901 (2015)

Group velocity dispersion effect on the collapse of femtosecond laser pulses in air: a revised form for Marburger’s law

Suyu Li^1、2 and and Mingxing^1、2

Author Affiliations

¹Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

²Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy (Jilin University), Changchun 130012 , China

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DOI: 10.3788/COL201513.121901 Cite this Article Set citation alerts

Suyu Li, and Mingxing. Group velocity dispersion effect on the collapse of femtosecond laser pulses in air: a revised form for Marburger’s law[J]. Chinese Optics Letters, 2015, 13(12): 121901 Copy Citation Text

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Abstract

The influence of group velocity dispersion (GVD) on the self-focusing of femtosecond laser pulses is investigated by numerically solving the extended nonlinear Schr?dinger equation. By introducing the GVD length LGVD into the semi-empirical, self-focusing formula proposed by Marburger, a revised one is proposed, which can not only well explain the influence of GVD on the collapse distance, but also is in good agreement with the numerical results, making the self-focusing formula applicable for more cases.

Keywords

190.0190 190.3270 190.5530 320.2250

Suyu Li, and Mingxing. Group velocity dispersion effect on the collapse of femtosecond laser pulses in air: a revised form for Marburger’s law[J]. Chinese Optics Letters, 2015, 13(12): 121901

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