R
Richard Kowarschik
Researcher at University of Jena
Publications - 213
Citations - 1962
Richard Kowarschik is an academic researcher from University of Jena. The author has contributed to research in topics: Photorefractive effect & Interferometry. The author has an hindex of 23, co-authored 211 publications receiving 1850 citations. Previous affiliations of Richard Kowarschik include Schiller International University & Bosch.
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Proceedings ArticleDOI
Holographic volume gratings in a glass-like polymer material
Vladislav Matusevich,Richard Kowarschik,U. V. Mahilny,D. N. Marmysh,A. I. Stankevich,Alexei L. Tolstik,I. N. Agishev +6 more
TL;DR: In this paper, a volume holographic grating with a diffraction efficiency of almost 100% and a grating period > 0.3/spl mu/m in a novel glass-like polymeric material based on PMMA was demonstrated.
Journal ArticleDOI
Holographic volume gratings in a glass-like polymer material
U. V. Mahilny,D. N. Marmysh,A. I. Stankevich,Alexei L. Tolstik,Vladislav Matusevich,Richard Kowarschik +5 more
TL;DR: In this article, the authors demonstrate a possibility to write efficient and thermally stable volume holographic gratings in a glassy polymer material based on PMMA and phenanthrenequinone with layers prepared, by casting the liquid solution of ingredients on a substrate and drying to a solid state.
Journal ArticleDOI
Fast data acquisition for three-dimensional shape measurement using fixed-pattern projection and temporal coding
TL;DR: Using a standard stereo-photogrammetry approach, as well as a simple, yet powerful structured light projection concept based on a slide-projector, this work demonstrates an acquisition rate of more than 700 dense and accurate 3D measurements per second.
Journal ArticleDOI
Modified polymethylmethacrylate as a base for thermostable optical recording media.
Krul Leonid P,Vladislav Matusevich,Dominik Hoff,Richard Kowarschik,Yu. I. Matusevich,G. V. Butovskaya,E.A. Murashko +6 more
TL;DR: A possibility to improve the thermal properties of holographic gratings in a photosensitive system based on polymethylmethacrylate (PMMA) and to enhance simultaneously the adhesion of the photopolymer to soda-lime glass is demonstrated.
Journal ArticleDOI
Modeling the photochemical kinetics induced by holographic exposures in PQ/PMMA photopolymer material
Shui Liu,Michael R. Gleeson,Jinxin Guo,John T. Sheridan,Elen Tolstik,Vladislav Matusevich,Richard Kowarschik +6 more
TL;DR: Based on a detailed analysis of the photochemical mechanisms present in PQ/PMMA photopolymer during holographic grating formation, a set of rate equations are derived governing the temporal and spatial variations of each associated chemical species concentration as mentioned in this paper.