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
收藏
页码：3540 / 3543
页数：4
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