Discrete damage traces from filamentation of Gauss-Bessel pulses
E. Gaizauskas,E. Vanagas,Vygandas Jarutis,Saulius Juodkazis,Vygantas Mizeikis,Hiroaki Misawa +5 more
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TLDR
Filamentation of Bessel-Gauss pulses propagating in borosilicate glass is found to produce damage lines extending over hundreds of micrometers and consisting of discrete, equidistant damage spots that are potentially applicable in laser microfabrication of transparent materials.Abstract:
Filamentation of Bessel-Gauss pulses propagating in borosilicate glass is found to produce damage lines extending over hundreds of micrometers and consisting of discrete, equidistant damage spots. These discrete damage traces are explained by self-regeneration of Gauss-Bessel beams during propagation and are potentially applicable in laser microfabrication of transparent materials.read more
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Femtosecond filamentation in transparent media
Arnaud Couairon,André Mysyrowicz +1 more
TL;DR: In this paper, the main aspects of ultrashort laser pulse filamentation in various transparent media such as air (gases), transparent solids and liquids are introduced and discussed.
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Bessel and annular beams for materials processing
TL;DR: In this paper, proper-ties, generation methods and emerging applications for non-Gaussian beam shapes are discussed, including Bessel, an-nular, and vortex beams.
Journal ArticleDOI
Laser-matter interaction in the bulk of a transparent solid: confined microexplosion and void formation
Eugene G Gamaly,Saulius Juodkazis,Koichi Nishimura,Hiroaki Misawa,Barry Luther-Davies,L. Hallo,Philippe Nicolai,Vladimir Tikhonchuk +7 more
TL;DR: In this article, a femtosecond laser pulse interaction inside a bulk of transparent media (sapphire, glass, polymer) is studied, which leads to the drastic transformations in a solid resulting in a void formation inside a dielectric.
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Filamentation of high-power femtosecond laser radiation
TL;DR: The state of the art of investigations on filamentation of a high-power femtosecond laser radiation in transparent media is reviewed in this article, where the physical picture of this phenomenon is presented and its relation to the fundamental concepts of nonlinear optics and practical applications is demonstrated.
Journal ArticleDOI
Three-dimensional microfabrication of materials by femtosecond lasers for photonics applications
TL;DR: In this paper, the advantages and limitations of various femtosecond laser microfabrication techniques for the preparation of photonic crystals and elements of microelectromechanical and micro-optofluidic systems are discussed.
References
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Diffraction-free beams.
TL;DR: The first experimental investigation of nondiffracting beams, with beam spots as small as a few wavelengths, can exist and propagate in free space, is reported.
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Self-channeling of high-peak-power femtosecond laser pulses in air
TL;DR: The self-channeling of ultrashort laser pulses through 20 m of air was demonstrated and a preliminary model is shown to explain these results.
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Simultaneous micromanipulation in multiple planes using a self-reconstructing light beam
TL;DR: Bessel beams do not diverge and, furthermore, if part of the beam is obstructed or distorted the beam reconstructs itself after a characteristic propagation distance, which may be utilized within optical tweezers to trap particles in multiple, spatially separated sample cells with a single beam.