Journal ArticleDOI
Theoretical analysis of a quasi-Bessel beam for laser ablation
TLDR
In this article, the characterizations of quasi-Bessel beam (QBB) formed by the ideal axicon and oblate-tip axicon are described, and simple analytical formulas can be used to predict the required laser parameters, including the laser pulse energy, the generated fluence distributions, and the beam diameters.Abstract:
A quasi-Bessel beam (QBB) is suitable for laser ablation because it possesses a micrometer-sized focal spot and long depth of focus simultaneously. In this paper, the characterizations of QBBs formed by the ideal axicon and oblate-tip axicon are described. Strong on-axis intensity oscillations occur due to interference between the QBB and the refracted beam by the oblate tip. Using the axicon for laser ablation was theoretically investigated. Simple analytical formulas can be used to predict the required laser parameters, including the laser pulse energy, the generated fluence distributions, and the beam diameters.read more
Citations
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Journal ArticleDOI
Non-ideal axicon-generated Bessel beam application for intra-volume glass modification
TL;DR: The novel results on bulk modifications of soda-lime glass using a non-ideal axicon-generated Bessel beam are presented and the possibility to control the transverse crack propagation direction is demonstrated, which is crucial in the case of glass cutting applications.
Journal Article
Application of Bessel Beams for Microfabrication of Dielectrics by Femtosecond Laser : Instrumentation, Measurement, and Fabrication Technology
TL;DR: In this article, a femtosecond microfabrication of transparent dielectrics using non-fracting Bessel beams instead of the conventionally used Gaussian beams is presented.
Journal ArticleDOI
Aberration-controlled Bessel beam processing of glass.
TL;DR: A simple method for non-ideal axicon-generated Bessel beam reconstruction by tilting the axicon perpendicular to its optical axis is introduced and an optimum axicon tilt angle is found where beam distortions can be compensated by inducing additional astigmatic aberrations.
Journal ArticleDOI
Fabrication of nanoparticles and nanostructures using ultrafast laser ablation of silver with Bessel beams
TL;DR: Ablation of silver targets immersed in double distilled water (DDW)/acetone was performed with first order, non-diffracting Bessel beams generated by focusing ultrashort Gaussian pulses (~2 and ~40 fs) through an Axicon as discussed by the authors.
Journal ArticleDOI
Bessel beam asymmetry control for glass dicing applications
TL;DR: In this article, axicon-generated asymmetrical Bessel beams were used for glass dicing. But the axicon tilt operation was introduced to add additional astigmatic aberrations for Bessel beam asymmetry control.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
Femtosecond laser micromachining in transparent materials
Rafael R. Gattass,Eric Mazur +1 more
TL;DR: In this article, the physical mechanisms and the main experimental parameters involved in femtosecond laser micromachining of transparent materials, and important emerging applications of the technology are described.
Journal ArticleDOI
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.
Journal ArticleDOI
Rapid three-dimensional isotropic imaging of living cells using Bessel beam plane illumination
Thomas A. Planchon,Liang Gao,Daniel E. Milkie,Michael W. Davidson,James A. Galbraith,Catherine G. Galbraith,Eric Betzig +6 more
TL;DR: Scanned Bessel beams are used in conjunction with structured illumination and/or two-photon excitation to create thinner light sheets better suited to three-dimensional (3D) subcellular imaging.