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Communication Dans Un Congrès Année : 2016

Ultrafast laser structuring of glass and sapphire materials with tailored beams

Résumé

Ultrafast lasers have become a key tool for advanced structuring of glass and other transparent hard and brittle materials. In this context, it is crucial to control the propagation of the laser pulse inside the transparent medium while the complex laser-matter interaction renders it highly nonlinear.We have shown that a particular class of beam shapes, ie "diffraction-free" beams, enables a novel degree of control of light-matter interaction with a quasi-uniform deposition of energy in the material. This enabled for instance high-aspect ratio nanochannel drilling with a single laser pulse in various transparent materials [1]. We reported curved laser processing [2] or high-aspect ratio tubular shape inscription [3].We will review how the specific structure of nondiffracting and curved beams allows for controlling energy deposition in transparent materials and review their applications to laser materials processing of transparent materials [4].
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Dates et versions

hal-02380324 , version 1 (26-11-2019)

Identifiants

  • HAL Id : hal-02380324 , version 1

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François Courvoisier, Ludovic Rapp, Rémi Meyer, Ismail Ouadghiri Idrissi, Remo Giust, et al.. Ultrafast laser structuring of glass and sapphire materials with tailored beams. Stuttgart Laser Technology Forum, May 2016, Stuttgart, Germany. ⟨hal-02380324⟩
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