Filament-induced laser machining (FILM)

Kiselev, Denis; Woeste, L.; Wolf, Jean‐Pierre

doi:10.1007/s00340-010-4102-y

Cited by 46 publications

(19 citation statements)

References 31 publications

(26 reference statements)

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“…A filament, caused by competition dynamics between the optical Kerr self-focusing and plasma defocusing effect, is created with a clamped light intensity of around 10 13 W/cm 2 over the whole length [17,18]. The attractive property of the filaments in terms of remote delivery of high clamping intensity has recently given rise to a number of applications such as remote cutting of metals and biological materials [19] and continuous propulsion of aerocraft without any onboard focusing system [20].…”

Section: Introductionmentioning

confidence: 99%

Extending femtosecond laser fabrication of micro- and nanoscale structures from a planar to non-planar metal surface

Tao

Tan

Diao

et al. 2012

2012 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3m-Nano)

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Micro-and nanoscale structures on a material surface formed by femotosecond laser processing have greatly changed its optical characteristics. In this work, the coloring of Al surface has been realized with scanning focused femtosecond laser beam on the Al surface. We further apply femtosecond laser filamentation to form micro-and nano-structures on a spherical Al surface, resulting in a black appearance of the spherical Al. This work opens ways to fabricate strong light-trapping microand nano-structure on a non-planar surface without the complexity of a 4-axis sample control.

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Section: Introductionmentioning

confidence: 99%

Extending femtosecond laser fabrication of micro- and nanoscale structures from a planar to non-planar metal surface

Tao

Tan

Diao

et al. 2012

2012 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3m-Nano)

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“…Recently, femtosecond laser filament has been utilized in the field of remotely cutting and drilling metals and biological materials such as flesh and bones [10]. Filamentation results from a dynamics competition between the nonlinear optical Kerr self-focusing and defocusing of the self-generated plasma [11], leading to nearly constant intensity of ∼10 13 -10 14 W∕cm 2 in a long (from a few centimeters up to tens of meters) plasma channel with a diameter of ∼100-200 μm.…”

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confidence: 99%

Remote and rapid micromachining of broadband low-reflectivity black silicon surfaces by femtosecond laser filaments

Zhan

et al. 2017

Opt. Lett.

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We report an approach for remote and rapid fabrication of a broadband low-reflectivity black silicon surface by ablating crystalline silicon with femtosecond laser filaments in air. Porous microstructures on the processed silicon surface are formed, resulting in a significantly enhanced light trapping efficiency in a broadband (UV-IR) spectral range. It is found that the air filament can significantly reduce the average number of adopted pulses in a normalized fabrication area and enables the processing remotely, which opens a way toward remote and rapid micromachining of optoelectronic materials by femtosecond laser filaments.

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“…Ultrashort pulse filamentation is of particular interest, since it represents an ultimate regime of light and matter interaction, and the nonlinear dynamics is governed by the interplay of self-focusing and self-phase modulation, whitelight continuum generation, diffraction, nonlinear absorption, free-electron plasma generation, and space-time effects [22]. On the other hand, filamentation phenomena find a broad spectrum of applications, ranging from atmospheric analysis * Corresponding author: audrius.dubietis@ff.vu.lt[23] to laser micromachining [24], and therefore the stability issues of the filaments are of primary importance.In this Brief Report, we report on a class of optical rogue events that occur in three-dimensional geometries as opposed to the widely studied one-or two-dimensional systems. In three-dimensional space, strong space-time coupling may lead to rogue events that bear some specific features, namely a trailing peak with a lower-than-average intensity albeit with a wider spectrum.…”

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confidence: 99%

“…[23] to laser micromachining [24], and therefore the stability issues of the filaments are of primary importance.…”

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confidence: 99%

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confidence: 99%

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Spatiotemporal rogue events in femtosecond filamentation

et al. 2011

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We present experimental and numerical investigations of optical extreme (rogue) event statistics recorded in the regime of femtosecond pulse filamentation in water. In the spectral domain, the extreme events manifest themselves as either large or small extremes of the spectral intensity, justified by right-or left-tailed statistical distributions, respectively. In the time domain, the observed extreme events are associated with pulse splitting and energy redistribution in space and therefore are exquisitely linked to three-dimensional, spatiotemporal dynamics and formation of the X waves.Rogue or freak waves are well known in hydrodynamics and refer to statistically rare giant waves that occur on the surface of oceans and seas (see, e.g., [1] for a review). From a general point of view, rogue waves or, more generally, rogue (extreme) events represent an extreme sensitivity of the nonlinear system to the initial conditions. Indeed, recently rogue-wave-like behavior was shown to be inherent to diverse nonlinear physical environments: propagation of acoustic waves in superfluid helium [2], variation of local atomic density in Bose-Einstein condensates [3], ion-acoustic and Alfvén wave propagation in plasmas [4], and propagation of acoustic-gravity waves in the atmosphere [5].Optical rogue waves, recently discovered by Solli et al.[6], constitute a fascinating topic in modern nonlinear optics [7,8]. At present, most of the knowledge on optical rogue waves is brought by the studies of the supercontinuum generation in optical fibers, under a variety of operating conditions and propagation regimes ranging from CW to femtosecond pulses [9][10][11][12][13][14][15], and has been shown to share a great similarity with the waves' hydrodynamical counterparts [16]. In fibers, rogue waves represent rare soliton pulses, whose statistics are characterized by extreme-value (non-Gaussian or, more specifically, L-shaped) distributions. It is generally accepted that optical rogue waves emerge as a result of the nonlinear wave interactions and soliton collisions, although the precise underlying physical mechanisms leading to their formation are still under debate [17].Extreme-value statistics are also inherent to various nonlinear optical systems, where dimensionality and nonlinear wave dynamics are more complex compared to optical fibers: nonlinear optical cavities [18], nonlinear optical lattices [19], nonlinear waveguides [20], and ultrashort pulse filamentation [21]. Ultrashort pulse filamentation is of particular interest, since it represents an ultimate regime of light and matter interaction, and the nonlinear dynamics is governed by the interplay of self-focusing and self-phase modulation, whitelight continuum generation, diffraction, nonlinear absorption, free-electron plasma generation, and space-time effects [22]. On the other hand, filamentation phenomena find a broad spectrum of applications, ranging from atmospheric analysis * Corresponding author: audrius.dubietis@ff.vu.lt[23] to laser micromachining [24], and therefore ...

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Filament-induced laser machining (FILM)

Cited by 46 publications

References 31 publications

Extending femtosecond laser fabrication of micro- and nanoscale structures from a planar to non-planar metal surface

Extending femtosecond laser fabrication of micro- and nanoscale structures from a planar to non-planar metal surface

Remote and rapid micromachining of broadband low-reflectivity black silicon surfaces by femtosecond laser filaments

Spatiotemporal rogue events in femtosecond filamentation

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