Scattering from reflective diffraction gratings: the challenges of measurement and simulation
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Monika Kroneberger received her diploma in Physics in 1991 from the Johann Wolfgang Goethe University in Frankfurt/Main. Currently, she is working in the domain of optical system engineering for OHB system AG. Her main topic is stray light reduction and verification in the optical systems by simulation and measurement.
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Sebastian Fray did his PhD thesis at the Max-Planck-Institute of Quantum Optics in Garching and received his PhD in Physics in 2004 from the Ludwigs-Maximilians Universität in Munich/Germany. Currently, he works at OHB System AG in the domain of optical system engineering involved in development of various optical space instruments for earth observation.
Abstract
The accurate simulation of stray light is essential for the prediction of signal detection fidelity in an optical instrument with high contrast requirements. In a spectrometer, the scattering from reflective gratings is poorly understood and difficult to characterize, but contributes significantly to the overall system stray light and reduction in contrast. This paper describes the approaches that will be taken at OHB System AG to establish a sufficiently precise fitting of bidirectional scatter distribution functions (BSDFs) to existing data obtained from measurements of scattering from gratings. The work is being undertaken in preparation for the analysis and fitting of a BSDF to the scattering from the grating for the FLEX low-resolution spectrometer that will be measured in the second half of 2017.
About the authors
Monika Kroneberger received her diploma in Physics in 1991 from the Johann Wolfgang Goethe University in Frankfurt/Main. Currently, she is working in the domain of optical system engineering for OHB system AG. Her main topic is stray light reduction and verification in the optical systems by simulation and measurement.
Sebastian Fray did his PhD thesis at the Max-Planck-Institute of Quantum Optics in Garching and received his PhD in Physics in 2004 from the Ludwigs-Maximilians Universität in Munich/Germany. Currently, he works at OHB System AG in the domain of optical system engineering involved in development of various optical space instruments for earth observation.
Acknowledgments
In the frame of FLEX development, OHB-Munich has run analyses on the FLEX LR assembly to investigate stray light from different sources. Results of this paper are partially based on this work that was funded by ESA through the FLEX Mission development program.
References
[1] S. J. Wein, PhD Theses University of Arizona (1989), ‘Small-Angle Scatter Measurement’.Suche in Google Scholar
[2] B. Harnisch, A. Deep, R. Vink, C. Coatantiec, ICSO 2012, FP 156, ‘Grating Scattering BSDF and Imaging Performances’.Suche in Google Scholar
[3] M. G. Dittman, Proc. SPIE 4774, 99–110 (2002).10.1515/semi.2002.068Suche in Google Scholar
©2017 THOSS Media & De Gruyter, Berlin/Boston
Artikel in diesem Heft
- Cover and Frontmatter
- Community
- News from the European Optical Society EOS
- News
- Topical issue: Optical Surfaces
- Editorial
- Topical issue on optical surfaces
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- Freeform surface descriptions. Part I: Mathematical representations
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- Analysis of critical process parameters of ductile mode grinding of brittle materials
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- Reducing light scattering from surface contaminations by thin film design
- Scattering from reflective diffraction gratings: the challenges of measurement and simulation
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Artikel in diesem Heft
- Cover and Frontmatter
- Community
- News from the European Optical Society EOS
- News
- Topical issue: Optical Surfaces
- Editorial
- Topical issue on optical surfaces
- Research Articles
- Freeform surface descriptions. Part I: Mathematical representations
- Freeform surface descriptions. Part II: Application benchmark
- Analysis of critical process parameters of ductile mode grinding of brittle materials
- Spectral laser damage testing of optical materials
- Reducing light scattering from surface contaminations by thin film design
- Scattering from reflective diffraction gratings: the challenges of measurement and simulation
- Defined wetting properties of optical surfaces
- Research Articles
- Methodology for assessing laser-based equipment
- Does the foveal shape influence the image formation in human eyes?
