Optimized Laser Material Processing with Tailored Focal Intensity Distributions

被引：0

作者：

Moehl, A. ^{[1
]}

Wickenhagen, S. ^{[1
]}

Mueller, F. A. ^{[2
]}

Graef, S. ^{[2
]}

Fuchs, U. ^{[1
]}

机构：

[1] Asphericon GmbH, Stockholmer Str 9, D-07747 Jena, Germany

[2] Friedrich Schiller Univ, Otto Schott Inst Mat Res OSIM, Lobdergraben 32, D-07743 Jena, Germany

来源：

LASER-BASED MICRO- AND NANOPROCESSING XIII | 2019年 / 10906卷

关键词：

beam shaping; gauss; top-hat; donut; material processing; laser-induced periodic surface structures;

D O I：

10.1117/12.2509403

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Gaussian intensity profiles are widely used in the field of laser material processing. Nevertheless, there are applications, where the inhomogeneous beam profile is not acceptable. We show that refractive beam shaping systems provide very good results for generating tailored focal intensity distributions, e.g. top-hat or doughnut shaped profiles. Even though using just one beam shaping system the width of the profiles is scalable. The device is suitable for working with a scanner and F-Theta lens as commonly used for material processing. Results of material processing of steel are compared for different focal intensity distributions.

引用

页数：6

共 8 条

[1]

Cordingley J.J., 1994, US Patent, Patent No. 5300756

[2]

Dickey FM, 2014, LASER BEAM SHAPING: THEORY AND TECHNIQUES, 2ND EDITION, P1, DOI 10.1201/b17140

[3] High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity [J].

Gnilitskyi, Iaroslav ;

Derrien, Thibault J. -Y. ;

Levy, Yoann ;

Bulgakova, Nadezhda M. ;

Mocek, Tomas ;

Orazi, Leonardo .

SCIENTIFIC REPORTS, 2017, 7

[4]

Goodman J. W., 2005, INTRO FOURIER OPTICS

[5] Mechano-responsive colour change of laser-induced periodic surface structures [J].

Graef, Stephan ;

Kunz, Clemens ;

Undisz, Andreas ;

Wonneberger, Robert ;

Rettenmayr, Markus ;

Mueller, Frank A. .

APPLIED SURFACE SCIENCE, 2019, 471 :645-651

[6] Polarisation-dependent generation of fs-laser induced periodic surface structures [J].

Graef', Stephan ;

Mueller, Frank A. .

APPLIED SURFACE SCIENCE, 2015, 331 :150-155

[7] SIMPLE TECHNIQUE FOR MEASUREMENTS OF PULSED GAUSSIAN-BEAM SPOT SIZES [J].

LIU, JM .

OPTICS LETTERS, 1982, 7 (05) :196-198

[8] Bio-Inspired Functional Surfaces Based on Laser-Induced Periodic Surface Structures [J].

Mueller, Frank A. ;

Kunz, Clemens ;

Graef, Stephan .

MATERIALS, 2016, 9 (06)

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