Periodic microstructures for large area applications generated by holography

Michael Niggemann; Benedikt Blaesi; Volkmar Boerner; Andreas Gombert; Michael Klicker; Volker Kuebler; Philippe Lalanne; Volker Wittwer

doi:10.1117/12.451498

26 December 2001 Periodic microstructures for large area applications generated by holography

Michael Niggemann, Benedikt Blaesi, Volkmar Boerner, Andreas Gombert, Michael Klicker, Volker Kuebler, Philippe Lalanne, Volker Wittwer

Author Affiliations +

Proceedings Volume 4438, Physics, Theory, and Applications of Periodic Structures in Optics; (2001) https://doi.org/10.1117/12.451498
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

The availability of periodic surface-relief structures with grating constants from 200 nm to 100 microns on large areas leads to a wide field of applications. Effects of interest are the antireflection properties of high aspect ratio subwavelength gratings and the light management by structures in the micrometer scale. The size of the homogeneously structured area and the ease of producability is decisive for the commercialization of such functional surfaces. Microstructures like these can be produced on large areas by holographic exposure processes. Subsequent holographic exposures with differing parameters lead to combined structures with distinct properties. Master structures in photoresist can be used to fabricate nickel stampers. Techniques like UV roller casting and hot embossing can be employed to replicate such microstructures on large areas with high precision. With such replication processes a very cost effective mass production is possible. With our holographic set-up periodic surface relief structures with various grating types and profile shapes can be realized with a good homogeneity on an area with dimensions up to 600 x 800 mm². The combination of stochastic and periodic structures offers the chance to obtain a multifunctional surface with antiglare and broadband antireflection properties. The possible applications are solar energy systems, lighting or displays.

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Michael Niggemann, Benedikt Blaesi, Volkmar Boerner, Andreas Gombert, Michael Klicker, Volker Kuebler, Philippe Lalanne, and Volker Wittwer "Periodic microstructures for large area applications generated by holography", Proc. SPIE 4438, Physics, Theory, and Applications of Periodic Structures in Optics, (26 December 2001); https://doi.org/10.1117/12.451498

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