Remote triggering of air-gap discharge by a femtosecond laser filament and postfilament at distances up to 80 m

被引：14

作者：

Kosareva, O. G. ^{[1
,2
]}

Mokrousova, D. V. ^{[2
]}

Panov, N. A. ^{[1
,2
]}

Nikolaeva, I. A. ^{[1
,2
]}

Shipilo, D. E. ^{[2
]}

Mitina, E. V. ^{[1
]}

Koribut, A. V. ^{[2
]}

Rizaev, G. E. ^{[2
]}

Couairon, A. ^{[3
]}

Houard, A. ^{[4
]}

Savel'ev, A. B. ^{[1
,2
]}

Seleznev, L. V. ^{[2
]}

Ionin, A. A. ^{[2
]}

Chin, S. L. ^{[5
]}

机构：

[1] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia

[2] Russian Acad Sci, PN Lebedev Phys Inst, 53 Leninskiy Prospect, Moscow 119991, Russia

[3] Ecole Polytech, Inst Polytech Paris, CPHT, CNRS, Route Saclay, F-91128 Palaiseau, France

[4] Ecole Polytech, Inst Polytech Paris, ENSTA Paris, CNRS,LOA, 828 Bd Marechaux, F-91762 Palaiseau, France

[5] Laval Univ, Ctr Opt Photon & Lasers COPL, Quebec City, PQ G1V 0A6, Canada

来源：

APPLIED PHYSICS LETTERS | 2021年 / 119卷 / 04期

关键词：

MULTIPHOTON PHOTOELECTRIC-EMISSION; SURFACE; PULSES; IONIZATION; IGNITION; PROPAGATION; INTENSITY; METAL;

D O I：

10.1063/5.0057544

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We experimentally observed laser-induced remote high-voltage discharge triggering between two needle electrodes with half-a-cm spacing. The discharge was initiated by a 744-nm, 90-fs, 6-mJ laser pulse undergoing filamentation in air. For the direct voltage below the self-breakdown threshold, triggering of air-gap discharge was synchronized with a 10-Hz laser repetition rate and occurred between 40 and 80 m of the propagation path. No discharge guiding was observed. The experimentally registered and simulated remote triggering probability was above 80% in the range of 45-60 m from laser output and about 50% in the range of 60-80 m. The probability decreases as the postfilament hot spot diverges with a simultaneous increase in stochastic laser beam wandering. Published under an exclusive license by AIP Publishing.

引用

页数：6

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