Laguerre-Gaussian laser filamentation for the control of electric discharges in air

被引：2

作者：

Fu, Silin ^{[1
,2
]}

Arantchouk, Leonid ^{[1
]}

Lozano, Magali ^{[1
]}

Mysyrowicz, Andre ^{[1
]}

Couairon, Arnaud ^{[3
]}

Houard, Aurelien ^{[1
]}

机构：

[1] IP Paris, Ecole Polytech, Lab Opt Appl, CNRS,ENSTA Paris, 1024 Bd Marechaux, F-91162 Palaiseau, France

[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[3] IP Paris, CNRS, Ecole Polytech, Ctr Phys Theor, Route Saclay, Palaiseau, France

来源：

OPTICS LETTERS | 2024年 / 49卷 / 13期

关键词：

FEMTOSECOND FILAMENTATION; ENERGY DEPOSITION; VORTEX BEAMS; GENERATION; BREAKDOWN;

D O I：

10.1364/OL.522594

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the use of Laguerre-Gaussian (LG) femtosecond laser filament with multi GW peak power to guide electric sparks in the atmosphere. We demonstrate that an LG beam with a vortex phase or with 6 azimuthal phase steps generates a filamentation regime, where a longer and more uniform energy deposition is produced compared to a normal beam with a flat phase. Such filaments can guide electric discharges over much longer distances. This technique could significantly extend the guiding range of laser filaments for lightning control and other long-range atmospheric experiments involving filamentation. (c) 2024 Optica Publishing Group

引用

页码：3540 / 3543

页数：4

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