%0 Journal Article
%A Meyer, Remi
%A Froehly, L.
%A Giust, R.
%A Del Hoyo Muñoz, Jesús
%A Furfaro, L.
%A Billet, C.
%A Courvoisier, F.
%T Extremely high-aspect-ratio ultrafast Bessel beam generation and stealth dicing of multimillimeter thick glass
%D 2019
%@ 0003-6951
%U https://hdl.handle.net/20.500.14352/115667
%X We report on the development of an ultrafast beam shaper capable of generating Bessel beams of high cone angle that maintain a high intensity hot spot with subwavelength diameter over a propagation distance in excess of 8 mm. This generates a high intensity focal region with extremely high aspect ratio exceeding 10 000:1. The absence of intermediate focusing in the shaper allows for shaping very high energies, up to Joule levels. We demonstrate a proof of principle application of the Bessel beam shaper for stealth dicing of thick glass, up to 1 cm. We expect that this high energy Bessel beam shaper will have applications in several areas of high intensity laser physics.
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