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Article
Open AccessSecond and third harmonic generation from simultaneous high peak- and high average-power thin disk laser
We report Second Harmonic Generation (SHG) and Third Harmonic Generation (THG) energy conversion efficiencies up to 59% and 27%, respectively, for laser pulses simultaneously delivering high peak power in the ...
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Article
Open AccessParadoxical effects of altruism on efforts to mitigate climate change
It is common wisdom that altruism is a crucial element in addressing climate change and other public good issues. If individuals care about the welfare of others (including future generations) they can be expe...
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Article
Open AccessNonlinear wave evolution with data-driven breaking
Wave breaking is the main mechanism that dissipates energy input into ocean waves by wind and transferred across the spectrum by nonlinearity. It determines the properties of a sea state and plays a crucial ro...
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Article
Open AccessSeparatrix crossing and symmetry breaking in NLSE-like systems due to forcing and dam**
We theoretically and experimentally examine the effect of forcing and dam** on systems that can be described by the nonlinear Schrödinger equation (NLSE), by making use of the phase-space predictions of the ...
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Article
Co-existing climate attractors in a coupled aquaplanet
The first step in exploring the properties of dynamical systems like the Earth climate is to identify the different phase space regions where the trajectories asymptotically evolve, called ‘attractors’. In a g...
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Article
Conductivity and discharge guiding properties of mid-IR laser filaments
The electric properties of mid-IR filaments in air have been investigated in comparison with their more traditional near-IR counterparts. Although the number of ions left after the pulse is similar for both sp...
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Article
Pump-probe differential Lidar to quantify atmospheric supersaturation and particle-forming trace gases
We propose a pump-probe differential Lidar technique to remotely map the ability of the atmosphere to undergo particle condensation, which depends on the concentration of both pre-existing nanoparticles and c...
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Article
Erratum to: Mobile source of high-energy single-cycle terahertz pulses
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Article
White-light femtosecond Lidar at 100 TW power level
We characterized the white-light supercontinuum emission by a sub-petawatt laser system in the atmosphere via light detection and ranging measurements. As much as 1 J of supercontinuum is generated in the atmo...
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Article
Open AccessField measurements suggest the mechanism of laser-assisted water condensation
Because of the potential impact on agriculture and other key human activities, efforts have been dedicated to the local control of precipitation. The most common approach consists of dispersing small particles...
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Article
On negative higher-order Kerr effect and filamentation
As a contribution to the ongoing controversy about the role of higher-order Kerr effect (HOKE) in laser filamentation, we first provide thorough details about the protocol that has been employed to infer the H...
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Article
Mobile source of high-energy single-cycle terahertz pulses
The Teramobile laser facility was used to realize the first mobile source of high-power THz pulses. The source is based on a tilted-pulse-front pum** THz generation scheme optimized for application of terawatt ...
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Article
Saturation of the filament density of ultrashort intense laser pulses in air
We experimentally and numerically characterize multiple filamentation of laser pulses with incident intensities of a few TW/cm2. Propagating 100 TW laser pulses over 42 m in air, we observe a new propagation regi...
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Article
Multiple filamentation of non-uniformly focused ultrashort laser pulses
We propose the im**ement of non-uniform wavefront curvature as a simple way to improve the longitudinal homogeneity of the plasma density along filaments generated by ultrashort laser pulses. We characterize...
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Article
Filament-induced birefringence in Argon
We demonstrate that a driving ultrashort laser pulse undergoing filamentation can induce a remarkably large birefringence in Argon, resulting in an ultrafast “half-wave plate” for a copropagating non-filamenti...
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Chapter and Conference Paper
Filament-induced electric events in thunderstorms
Under conditions of high electric field during two thunderstorms, we observed a statistically significant number of electric events synchronized with the ionized filaments generated by ultrashort laser pulses ...
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Article
Angular distribution of non-linear optical emission from spheroidal microparticles
We measured the angular distribution of the near-backward multiphoton-excited fluorescence emission by ellipsoidal-shaped, dye-doped ethanol microdroplets deformed perpendicularly to the direction of the incid...
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Article
Spectral correlation and noise reduction in laser filaments
Intensity correlations and noise reduction are observed and characterized in the broadband supercontinuum generated by spatio-temporal solitons propagating in air, i.e., in filamentation of ultrashort laser pu...
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Article
UV–Supercontinuum generated by femtosecond pulse filamentation in air: Meter-range experiments versus numerical simulations
We report new experimental and numerical results on supercontinuum generation at ultraviolet/visible wavelengths produced by the propagation of infrared femtosecond laser pulses in air. Spectral broadening is ...
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Article
Influence of negative leader propagation on the triggering and guiding of high voltage discharges by laser filaments
The triggering and guiding of negative discharges using filaments induced by a femtosecond-terawatt laser pulse have been studied in sphere-plane gaps up to 4.5 meters. Fast-frame camera pictures allow the eva...
