Materials processing with a tightly focused femtosecond laser vortex pulse

Cyril Hnatovsky; Vladlen G. Shvedov; Wieslaw Krolikowski; Andrei V. Rode

doi:10.1364/OL.35.003417

Materials processing with a tightly focused femtosecond laser vortex pulse

Cyril Hnatovsky^*, Vladlen G. Shvedov, Wieslaw Krolikowski, Andrei V. Rode

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

199 Citations (Scopus)

Abstract

In this Letter we present the first (to our knowledge) demonstration of material modification using tightly focused single femtosecond laser vortex pulses. Double-charge femtosecond vortices were synthesized with a polarization-singularity beam converter based on light propagation in a uniaxial anisotropic medium and then focused using moderate- and high-NA optics (viz., NA = 0.45 and 0.9) to ablate fused silica and soda-lime glass. By controlling the pulse energy, we consistently machine micrometer-size ring-shaped structures with <100 nm uniform groove thickness.

Original language	English
Pages (from-to)	3417-3419
Number of pages	3
Journal	Optics Letters
Volume	35
Issue number	20
DOIs	https://doi.org/10.1364/OL.35.003417
Publication status	Published - 15 Oct 2010

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title = "Materials processing with a tightly focused femtosecond laser vortex pulse",

abstract = "In this Letter we present the first (to our knowledge) demonstration of material modification using tightly focused single femtosecond laser vortex pulses. Double-charge femtosecond vortices were synthesized with a polarization-singularity beam converter based on light propagation in a uniaxial anisotropic medium and then focused using moderate- and high-NA optics (viz., NA = 0.45 and 0.9) to ablate fused silica and soda-lime glass. By controlling the pulse energy, we consistently machine micrometer-size ring-shaped structures with <100 nm uniform groove thickness.",

author = "Cyril Hnatovsky and Shvedov, {Vladlen G.} and Wieslaw Krolikowski and Rode, {Andrei V.}",

year = "2010",

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AU - Hnatovsky, Cyril

AU - Shvedov, Vladlen G.

AU - Krolikowski, Wieslaw

AU - Rode, Andrei V.

PY - 2010/10/15

Y1 - 2010/10/15

N2 - In this Letter we present the first (to our knowledge) demonstration of material modification using tightly focused single femtosecond laser vortex pulses. Double-charge femtosecond vortices were synthesized with a polarization-singularity beam converter based on light propagation in a uniaxial anisotropic medium and then focused using moderate- and high-NA optics (viz., NA = 0.45 and 0.9) to ablate fused silica and soda-lime glass. By controlling the pulse energy, we consistently machine micrometer-size ring-shaped structures with <100 nm uniform groove thickness.

AB - In this Letter we present the first (to our knowledge) demonstration of material modification using tightly focused single femtosecond laser vortex pulses. Double-charge femtosecond vortices were synthesized with a polarization-singularity beam converter based on light propagation in a uniaxial anisotropic medium and then focused using moderate- and high-NA optics (viz., NA = 0.45 and 0.9) to ablate fused silica and soda-lime glass. By controlling the pulse energy, we consistently machine micrometer-size ring-shaped structures with <100 nm uniform groove thickness.

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U2 - 10.1364/OL.35.003417

DO - 10.1364/OL.35.003417

M3 - Article

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VL - 35

SP - 3417

EP - 3419

JO - Optics Letters

JF - Optics Letters

IS - 20

ER -

Materials processing with a tightly focused femtosecond laser vortex pulse

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