Optimization of fs-laser-induced voxels in nonlinear materials via over-correction of spherical aberration

J Lapointe, S Pouliot, A Dupont, T Guérineau… - Optics Letters, 2024 - opg.optica.org
In this Letter, over-correction of spherical aberration is used to counteract nonlinear effects
such as Kerr self-focusing and plasma effects, resulting in more spherical and small-sized …

Beam-shaping device-free femtosecond laser plane-by-plane inscription of high-quality FBGs

X Li, F Chen, W Bao, R Wang, X Qiao - Optics & Laser Technology, 2023 - Elsevier
Abstract Fiber Bragg gratings (FBGs) fabricated by femtosecond laser point-by-point
inscription suffer from insertion loss (IL) and polarization-dependent loss (PDL) which …

Conical phase front and aberration beam shaping for manipulating femtosecond laser chemical etching

E Alimohammadian, E Ertorer… - Optical Materials Express, 2021 - opg.optica.org
The countering and enhancing influence of surface aberration in combination with conical
phase front beam shaping was examined over shallow to deep focusing inside of fused …

Manipulating geometric and optical properties of laser-inscribed nanogratings with a conical phase front

E Alimohammadian, K Lammers, A Alberucci… - Optics …, 2022 - opg.optica.org
The formation of volumetric nanogratings in fused silica by femtosecond laser pulses are
shown to afford new opportunities for manipulating the physical shape and tailoring the …

PUBLISHING GROUP

J Lapointe, S Pouliot, A Dupont, T GUERINEAU… - opg.optica.org
In this Letter, over-correction of spherical aberration is used to counteract nonlinear effects
such as Kerr selffocusing and plasma effects, resulting in more spherical and small-sized …

Polarization manipulation in femtosecond laser direct written waveguides in fused silica

K Lammers - 2022 - db-thueringen.de
Using ultrashort laser pulses to create refractive index modifications in transparent materials
has become a popular method for fabricating integrated photonic circuits, since it allows …

Conical Beams for Directing Chemical Etching along Deeply-Focussed Femtosecond Laser Modification Tracks

E Alimohammadian, E Ertorer… - 2021 Conference on …, 2021 - ieeexplore.ieee.org
Femtosecond laser modification of transparent materials offers selective chemical etching,
facilitating three-dimensional (3D) micro-structures to open into flexible shapes as …