Andreas Hermerschmidt
École Polytechnique Fédérale de Lausanne
14 Papers
16 Citations
Andreas Hermerschmidt is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Beam splitter & Molding (process). The author has an hindex of 3, co-authored 14 publications.
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Papers
Inverse design and demonstration of high-performance wide-angle diffractive optical elements
TL;DR: A new strategy for optimizing high-performance and wide-angle diffractive optical elements is introduced, offering unprecedented control over the power distribution among the desired diffraction orders with only low requirements with respect to computational power.
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Multilevel micro-structuring of glassy carbon for precision glass molding of diffractive optical elements
TL;DR: In this article, an 8 level micro structuring process for glassy carbon molds with standard photolithography and a Ti layer as hard mask for reactive ion etching was introduced.
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Adjoint method and inverse design for diffractive beam splitters
Dong Cheon Kim,Andreas Hermerschmidt,P. N. Dyachenko,Toralf Scharf +3 more
- 21 Feb 2020
TL;DR: In this article, the adjoint optimization method was used to design wide-angle diffractive fan-out beam-splitters with a maximum 53° diffraction angle and a non-square 5×7 array generating beam splitter, achieving uniformity error of 16:35% (7×7) and 6:98% (5×7).
5
High-resolution interference microscopy of binary phase diffractive optical elements
Michail Symeonidis,Wataru Nakagawa,Dong Cheon Kim,Andreas Hermerschmidt,Toralf Scharf +4 more
- 15 Sep 2019
TL;DR: In this paper, the intensity and phase of light transmitted through a binary phase element were investigated using interference microscopy technique, and specific features in the intensity maps of the transmitted light were associated with the positions of the edges of the ridges and grooves in the phase element.
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•Posted Content
Adjoint method and inverse design for diffractive beam splitters
TL;DR: In this article, the adjoint optimization method was used to design wide-angle diffractive fan-out beam-splitters with a maximum 53° diffraction angle and a non-square 5x7 array generating beam splitter, which achieved uniformity error of 16.35% (7x7) and 6.98% (5x7).
3