| Issue |
Eur. Phys. J. AP
Volume 13, Number 1, January 2001
|
|
|---|---|---|
| Page(s) | 31 - 37 | |
| DOI | https://doi.org/10.1051/epjap:2001110 | |
| Published online | 15 January 2001 | |
https://doi.org/10.1051/epjap:2001110
Fabrication of refractive microlens arrays by visible irradiation of acrylic monomers: influence of photonic parameters
Département de Photochimie Générale, E.N.S.C. Mulhouse (UMR 7525) ,
3 rue Alfred Werner, 68093 Mulhouse Cedex, France
Corresponding author: C.Barghorn@univ-mulhouse.fr
Received:
21
June
2000
Revised:
30
October
2000
Accepted:
30
October
2000
Published online: 15 January 2001
The fabrication of refractive microlenses with self-developing photopolymers is reported. A spatially controlled illumination of the photosensitive layer induced an inhomogeneous photopolymerization involving formation of 3-D polymer network, mass-transport process of reactive species and bending of the surface. The process exhibited a completely self-processing character without any chemical post-treatment to reveal the relief. The lens arrays displayed diameters ranging from less than 100 μm to 1 mm and focal lengths from 100 μm to a few millimeters, depending on photonic, optical and physico-chemical parameters. The paper focuses on the importance of photonic parameters in the generation of microlens arrays and discusses the flexibility of this technique in the visible range.
PACS: 82.35.+t – Polymer reactions and polymerization / 42.70.-a – Optical materials / 42.30.-d – Imaging and optical processing
© EDP Sciences, 2001
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