Filamentation of femtosecond laser pulses governed by variable wavefront distortions via a deformable mirror

Ионин, А. А.; Iroshnikov, N. G.; Kosareva, O.G.; Larichev, A. V.; Mokrousova, D. V.; Panov, N. A.; Селезнев, Л. В.; Sinitsyn, D. V.; Sunchugasheva, E. S.

doi:10.1364/josab.30.002257

Cited by 31 publications

(9 citation statements)

References 31 publications

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“…At even higher powers, chaotic multi-filamentation can occur which only further complicates matters [1]. To resolve these issues, schemes which extend the length of a single filament are needed and to this end several endeavors have already been undertaken [13,[18][19][20][21][22][23][24][25]. These techniques often involve exploiting diffraction free wavefronts [19,26,27] such as Bessel beams while others take advantage of more involved processes [28,29].…”

Section: Introductionmentioning

confidence: 99%

Extending optical filaments using auxiliary dress beams

Mills

Heinrich

Kolesík

et al. 2015

J. Phys. B: At. Mol. Opt. Phys.

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Dressed optical filaments offer a way to greatly protract an optical filament’s natural length while at the same time mitigating nonlinear losses and unwanted multifilamentation effects. In this article, we first theoretically reexamine the quasi-linear propagation dynamics of a standard Gaussian-ring wavefront and then proceed to explore several optical dress beam arrangements of equal-energy. The purpose of this study is to numerically simulate configurations which more economically utilize the finite amount of energy available for filament prolongation. In general, we find that parameters such as beam width and inward radial chirp, when adjusted in unison, play an important role in extending a filament whereas the spatial distribution of power in the optical dress only affects the characteristic intensity fluctuations seen during refocusing cycles.

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Section: Introductionmentioning

confidence: 99%

Extending optical filaments using auxiliary dress beams

Mills

Heinrich

Kolesík

et al. 2015

J. Phys. B: At. Mol. Opt. Phys.

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“…The ability to control the intensity trajectory over long distances makes the self-flying focus ideal for creating long plasma channels-a critical component in a number of applications, such as advanced laser-based accelerators and directed energy. Current techniques for creating long plasmas rely on filamentation through a dynamic balancing of self-focusing and plasma refraction [15,16], axicon focusing [35][36][37], variable wave front distortion [38],…”

Section: Simulation and Demonstrationmentioning

confidence: 99%

Nonlinear spatiotemporal control of laser intensity

Simpson,

Ramsey,

Franke

et al. 2020

Preprint

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Spatiotemporal control over the intensity of a laser pulse has the potential to enable or revolutionize a wide range of laser-based applications that currently suffer from the poor flexibility offered by conventional optics. Specifically, these optics limit the region of high intensity to the Rayleigh range and provide little to no control over the trajectory of the peak intensity. Here, we introduce a nonlinear technique for spatiotemporal control, the "self-flying focus," that produces an arbitrary trajectory intensity peak that can be sustained for distances comparable to the focal length. The technique combines temporal pulse shaping and the inherent nonlinearity of a medium to customize the time and location at which each temporal slice within the pulse comes to its focus.As an example of its utility, simulations show that the self-flying focus can form a highly uniform, meter-scale plasma suitable for advanced plasma-based accelerators.

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“…One of the way to control the position and length of intense light channels is spatially modulation of the initial distribution of the amplitude or phase [4,5] of the light field to control beam self-focusing. Controlled phase distortions of the initial beam profile can be implemented in the experiments using an adaptive module, which includes a deformable mirror and a wavefront sensor [6]. Amplitude distortions of the initial beam profile can be achieved by using the amplitude masks [17].…”

Section: Introductionmentioning

confidence: 99%

Regularities of propagation of amplitude-modulated high-power femtosecond laser radiation in the air

Apeksimov

Babushkin²,

Geints³

et al. 2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The experimental results of the features of formation and path propagation of high-intensity light channels under conditions of distortions of the initial profile of a high-power femtosecond laser beam are presented. The distortions are introduced by amplitude modulation of the laser beam with the help of the masks. The use of amplitude masks allows generation of a given number of high-intensity light channels and their controllable filamentation mainly at short (tens of meters) distances of radiation propagation in air.

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Filamentation of femtosecond laser pulses governed by variable wavefront distortions via a deformable mirror

Cited by 31 publications

References 31 publications

Extending optical filaments using auxiliary dress beams

Extending optical filaments using auxiliary dress beams

Nonlinear spatiotemporal control of laser intensity

Regularities of propagation of amplitude-modulated high-power femtosecond laser radiation in the air

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