Multifunctional micro-optical elements for laser beam homogenizing and beam shaping

被引:14
|
作者
Bich, A. [1 ]
Rieck, J. [1 ]
Dumouchel, C. [1 ]
Roth, S. [1 ]
Weible, K. J. [1 ]
Eisner, M. [1 ]
Voelkel, R. [1 ]
Zimmermann, M. [2 ]
Rank, M. [2 ]
Schmidt, M. [2 ]
Bitterli, R. [3 ]
Ramanan, N. [3 ]
Ruffieux, P. [3 ]
Scharf, T. [3 ]
Noell, W. [3 ]
Herzig, H. -P. [3 ]
de Rooij, Nico [3 ]
机构
[1] SUSS Microopt SA, Jaquet Droz 7, CH-2000 Neuchatel, Switzerland
[2] Bayer Laserzentrum GmbH, D-91052 Erlangen, Germany
[3] Univ Neuchatel, Inst Microtechnol IMT, CH-2000 Neuchatel, Switzerland
关键词
beam homogenizer; spot array generator; flat-top; laser light sheet; micro-optics; microlens arrays; linear diffuser; micromirrors; MEMS;
D O I
10.1117/12.762923
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Refractive, diffractive and reflective micro-optical elements for laser beam shaping and homogenizing have been manufactured and tested. The presented multifunctional optical elements are used for shaping arbitrary laser beam profiles into a variety of geometries like, a homogeneous spot array or line pattern, a laser light sheet or flat-top intensity profiles. The resulting profiles are strongly influenced by the beam properties of the laser and by diffraction and interference effects at the micro-optical elements. We present general design rules for beam shaping and homogenizing. We demonstrate the application of such multifunctional micro-optical elements for a variety of applications from microlaser machining to laser diagnostic systems.
引用
收藏
页数:12
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