White-light femtosecond Lidar at 100 TW power level

Petrarca, M.; Henin, Stefano; Berti, Nicolas; Matthews, Mary; Chagas, J. C. S.; Kasparian, Jérôme; Wolf, Jean‐Pierre; Gatti, G.; Pirro, G. Di; Anania, M. P.; Ferrario, M.; Ghigo, A.

doi:10.1007/s00340-013-5741-6

Cited by 23 publications

(5 citation statements)

References 40 publications

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“…While the Teramobile system, for instance, provide Terawatt (10 12 W) peak and some watts average powers, the current and near future planned laser facilities aimed at delivering 10-100 Petawatt (10 16 -10 17 W) and multi-kW average powers (Bashinov et al 2014); this will correspond to 1000-10 000 Teramobile systems coherently combined together! A first step towards scaling up to these extreme levels was realized by performing laser induced water condensation at the 0.1-0.2 PW levels at the HZDR-Rossendorf (Petrarca et al 2011), ALLS-Montreal (Matthews et al 2013) and FLAME-Frascati facilities (Petrarca et al 2014).…”

Section: Scaling-up With Sub-petawatt Lasersmentioning

confidence: 99%

Short-pulse lasers for weather control

Wolf

2017

Rep. Prog. Phys.

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Filamentation of ultra-short TW-class lasers recently opened new perspectives in atmospheric research. Laser filaments are self-sustained light structures of 0.1-1 mm in diameter, spanning over hundreds of meters in length, and producing a low density plasma (10-10 cm) along their path. They stem from the dynamic balance between Kerr self-focusing and defocusing by the self-generated plasma and/or non-linear polarization saturation. While non-linearly propagating in air, these filamentary structures produce a coherent supercontinuum (from 230 nm to 4 µm, for a 800 nm laser wavelength) by self-phase modulation (SPM), which can be used for remote 3D-monitoring of atmospheric components by Lidar (Light Detection and Ranging). However, due to their high intensity (10-10 W cm), they also modify the chemical composition of the air via photo-ionization and photo-dissociation of the molecules and aerosols present in the laser path. These unique properties were recently exploited for investigating the capability of modulating some key atmospheric processes, like lightning from thunderclouds, water vapor condensation, fog formation and dissipation, and light scattering (albedo) from high altitude clouds for radiative forcing management. Here we review recent spectacular advances in this context, achieved both in the laboratory and in the field, reveal their underlying mechanisms, and discuss the applicability of using these new non-linear photonic catalysts for real scale weather control.

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Section: Scaling-up With Sub-petawatt Lasersmentioning

confidence: 99%

Short-pulse lasers for weather control

Wolf

2017

Rep. Prog. Phys.

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“…The beam diameter of 30 mm has a cross section of 700 mm , corresponding to more than 26 mm /filament. This value lies far from the geometrical saturation, which amounts to only a few mm /filament 63 . Therefore, spatial congestion is not the factor limiting the number of filaments.…”

Section: Resultsmentioning

confidence: 82%

Long distance laser filamentation using Yb:YAG kHz laser

Walch,

Mahieu,

Moreno

et al. 2023

Sci Rep

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In the framework of the Laser Lightning Rod project, whose aim is to show that laser-induced filaments can guide lightning discharges over considerable distances, we study over a distance of 140 m the filaments created by a laser system with J-range pulses of 1 ps duration at 1 kHz repetition rate. We investigate the spatial evolution of the multiple filamentation regime using the fundamental beam at 1030 nm or using combination with the second and third harmonics. The measurements were made using both a collimated beam and a loosely focused beam.

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“…High energy ultrashort laser pulse is widely used in industrial micromachining/ modification [1], laser surgery [2], and defense technology [3]. Despite the rapid development of high energy pico-and femtosecond laser technologies, the flexible delivery of ultrashort laser pulses via optical fiber remains a challenge [4].…”

Section: Introductionmentioning

confidence: 99%

Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength

et al. 2023

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We demonstrate the damage-free delivery of nearly diffraction-limited picosecond laser pulses at 1064 nm with a maximum peak power of 3.5 MW in a 5 m air-filled anti-resonant hollow-core fiber (AR-HCF). In the air-filled AR-HCF, the transmission efficiency of picosecond pulses is degraded due to stimulated Raman scattering for the incident peak power above 3.59 MW. The temporal compression of pulses is also observed in the air-filled AR-HCF, where the self-phase modulation plays a key role in the anomalous dispersion region. By vacuuming the air in the core, a nearly constant coupling efficiency of 77% is achieved through the 5 m AR-HCF free of nonlinear effects, with M2 of the output beam less than 1.17.

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White-light femtosecond Lidar at 100 TW power level

Cited by 23 publications

References 40 publications

Short-pulse lasers for weather control

Short-pulse lasers for weather control

Long distance laser filamentation using Yb:YAG kHz laser

Delivery of Nearly Diffraction-Limited Picosecond Laser Pulses in the Air-Filled Anti-Resonant Hollow-Core Fiber at 1 μm Wavelength

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