Journal ArticleDOI
Display glass cutting by femtosecond laser induced single shot periodic void array
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TLDR
In this paper, a femtosecond laser with pulse duration of 172 fs, central wavelength of 780 nm, and repetition rate of 1 kHz is used to fabricate voids.Abstract:
We propose an idea of fast cutting a display glass plate where the sample is pre-processed micromachining single shot rear-surface and internal void arrays aligned on working plane prior to glass cleaving. Single shot void morphology is investigated varying input pulse energy, focusing depth, and scanning speed. A femtosecond laser with pulse duration of 172 fs, central wavelength of 780 nm, and repetition rate of 1 kHz is used to fabricate voids.read more
Citations
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Patent
Transparent material processing with an ultrashort pulse laser
TL;DR: In this paper, a method for welding transparent materials using ultrashort laser pulses was proposed, where the laser is focused near the interface of the materials, generating a high energy fluence at the region to be welded.
Patent
Method of material processing by laser filamentation
TL;DR: In this article, a method for the internal processing of a transparent substrate in preparation for a cleaving step is provided, where the substrate is irradiated with a focused laser beam that is comprised of pulses having an energy and pulse duration selected to produce a filament within the substrate.
Journal ArticleDOI
Femtosecond laser induced phenomena in transparent solid materials: Fundamentals and applications
TL;DR: In this paper, the authors present a critical overview of the current state of the art in studying femtosecond laser induced various phenomena in transparent materials, including their physical and chemical mechanisms, the applications and limitations as well as the future research trends.
Journal ArticleDOI
Laser glass cutting techniques—A review
TL;DR: A review of all the laser glass cutting techniques discovered in recent work and forms a comparison framework, in particular, their limitations and their current status which would facilitate prospective research and future development as discussed by the authors.
Patent
Method for rapid laser drilling of holes in glass and products made therefrom
Sasha Marjanovic,Garrett Andrew Piech,Shyamala Shanmugam,Carlos A. Pons Siepermann,Sergio Tsuda,Zsigmond Varga,Robert Stephen Wagner +6 more
TL;DR: In this paper, the authors focus a pulsed laser beam into a laser beam focal line oriented along the beam propagation direction and directed into the material, and translate the material and the laser beam relative to each other, forming a plurality of defect lines in the material.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
Wavelength division with three-dimensional couplers fabricated by filamentation of femtosecond laser pulses
TL;DR: The fabrication of 2-mm directional couplers to split the coupled beam into 1:1 at a wavelength of 632.8 nm is demonstrated and the realization of three-dimensional directional coupler and wavelength division in the output from the coupler is also demonstrated.
Journal ArticleDOI
Multiple foci and a long filament observed with focused femtosecond pulse propagation in fused silica.
TL;DR: A physical image of femtoseond pulse propagation is given by a model based on the nonlinear Schrödinger equation and a long filament tail is formed instead of multiple foci when the NA is 0.85.
Journal ArticleDOI
Self-fabrication of void array in fused silica by femtosecond laser processing
TL;DR: In this paper, the authors demonstrate self-fabrication of a submicrometer-sized void array in fused silica using a 100fs 0.2-3μJ Ti:Sapphire femtosecond laser and a high 0.9 numerical aperture (NA) objective lens.