Prof. Steffen Wilbrandt Profile

Prof. Steffen Wilbrandt

at Fraunhofer-IOF

SPIE Involvement:

Author

Area of Expertise:

optical coating design , layer characterization , rugate , optical monitoring , spectralphotometry , plasma ion assisted deposition

Publications (16)

Proceedings Article | 3 December 2022 Poster + Presentation

Nonlinear absorption in TiO2 and HfO2 thin films

Christian Mühlig, Simon Bublitz, Benjamin Rudolph, Olaf Stenzel, Steffen Wilbrandt

Proceedings Volume PC12300, PC1230010 (2022) https://doi.org/10.1117/12.2642985

KEYWORDS: Absorption, Titanium dioxide, Thin films, Laser induced damage

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Proceedings Article | 17 November 2017 Open Access

High-reflective coatings for ground and space based applications

M. Schürmann, S. Schwinde, P. Jobst, O. Stenzel, S. Wilbrandt, A. Szeghalmi, A. Bingel, P. Munzert, N. Kaiser

Proceedings Volume 10563, 105630M (2017) https://doi.org/10.1117/12.2304172

KEYWORDS: Silver, Optical coatings, Reflectivity, Aluminum, Atomic layer deposition, Particles, Contamination, Mirrors, Multilayers, Humidity

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Proceedings Article | 16 October 2017 Paper

Prospects for the enhancement of PIAD processes by plasma diagnostics

Jens Harhausen, Rüdiger Foest, Jochen Wauer, Olaf Stenzel, Steffen Wilbrandt, Christian Franke, Moritz Oberberg, Ralf Brinkmann

Proceedings Volume 10448, 104481T (2017) https://doi.org/10.1117/12.2279800

KEYWORDS: Plasma, Plasma spectroscopy, Plasma diagnostics, Optical coatings, Active optics, Emission spectroscopy, Multilayers, Process control, Spectroscopes, Ions

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Proceedings Article | 23 September 2015 Paper

Optical characterization of high index metal oxide films for UV/VIS applications, prepared by Plasma Ion Assisted Deposition

O. Stenzel, S. Wilbrandt, N. Kaiser

Proceedings Volume 9627, 962709 (2015) https://doi.org/10.1117/12.2196197

KEYWORDS: Refractive index, Particles, Ions, Noble gases, Oxides, Chemical species, Optical coatings, Zirconium dioxide, Xenon, Argon

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Proceedings Article | 23 September 2015 Paper

Preparation and characterization of aluminum oxide/aluminum fluoride mixture coatings for applications in the deep ultraviolet spectral range

Christian Franke, Olaf Stenzel, Steffen Wilbrandt, Norbert Kaiser, Andreas Tünnermann

Proceedings Volume 9627, 96271N (2015) https://doi.org/10.1117/12.2191282

KEYWORDS: Aluminum, Optical coatings, Refractive index, Oxygen, Silicon, Thin film coatings, Thin films, Antireflective coatings, Plasma, Fluorine

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Proceedings Article | 13 September 2012 Paper

Optical reflector coatings for astronomical applications from EUV to IR

Mark Schürmann, Paul Johannes Jobst, Sergiy Yulin, Torsten Feigl, Hanno Heiße, Steffen Wilbrandt, Olaf Stenzel, Andreas Gebhardt, Stefan Risse, Norbert Kaiser

Proceedings Volume 8450, 84502K (2012) https://doi.org/10.1117/12.925425

KEYWORDS: Optical coatings, Reflectivity, Silver, Mirrors, Metals, Polishing, Optics manufacturing, Reflectors, Astronomy, Amorphous silicon

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Proceedings Article | 5 October 2011 Paper

Plasma and optical thin film technologies

O. Stenzel, S. Wilbrandt, N. Kaiser, C. Schmitz, M. Turowski, D. Ristau, P. Awakowicz, R. Brinkmann, T. Musch, I. Rolfes, H. Steffen, R. Foest, A. Ohl, T. Köhler, G. Dolgonos, T. Frauenheim

Proceedings Volume 8168, 81680L (2011) https://doi.org/10.1117/12.895323

KEYWORDS: Plasma, Coating, Chemical species, Thin films, Ions, Optical coatings, Oxygen, Particles, Ion beams, Oxides

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Proceedings Article | 4 October 2011 Paper

Optical and mechanical properties of oxide UV coatings, prepared by PVD techniques

Olaf Stenzel, Mark Schürmann, Steffen Wilbrandt, Norbert Kaiser, Andreas Tünnermann, Mathias Mende, Henrik Ehlers, Detlev Ristau, Stefan Bruns, Michael Vergöhl, Werner Riggers, Martin Bischoff, Mario Held

Proceedings Volume 8168, 81681W (2011) https://doi.org/10.1117/12.896775

KEYWORDS: Coating, Ultraviolet radiation, Oxides, Refractive index, Silicon, Thin films, Glasses, Temperature metrology, Silica, Semiconducting wafers

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Proceedings Article | 25 September 2008 Paper

Development of a hybrid monitoring strategy to the deposition of chirped mirrors by plasma-ion assisted electron evaporation

Olaf Stenzel, Steffen Wilbrandt, Norbert Kaiser, Dieter Fasold

Proceedings Volume 7101, 71011Y (2008) https://doi.org/10.1117/12.799711

KEYWORDS: Mirrors, Quartz, Crystals, Reflectivity, Coating, Silica, Error analysis, Electron beams, Solids, Plasma

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Proceedings Article | 25 September 2008 Paper

All-optical in-situ monitoring of PIAD deposition processes

Steffen Wilbrandt, Olaf Stenzel, Norbert Kaiser

Proceedings Volume 7101, 71010D (2008) https://doi.org/10.1117/12.797454

KEYWORDS: Plasma, Oxygen, Deposition processes, Transmittance, Niobium, Coating, Absorption, CCD cameras, Oxides, Emission spectroscopy

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Proceedings Article | 5 October 2005 Paper

Design of hybrid coatings composed of homogeneous layers and refractive index gradients

Vesna Janicki, Robert Leitel, Steffen Wilbrandt, Olaf Stenzel, Dieter Gäbler, Norbert Kaiser

Proceedings Volume 5963, 59631D (2005) https://doi.org/10.1117/12.624348

KEYWORDS: Refractive index, Reflectivity, Optical coatings, Antireflective coatings, Gradient-index optics, Computer aided design, Thin film coatings, Software development, Niobium, Optical properties

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Proceedings Article | 5 October 2005 Paper

Re-engineering of inhomogeneous coatings based on in-situ optical broadband monitoring data

S. Wilbrandt, O. Stenzel, D. Gäbler, N. Kaiser

Proceedings Volume 5963, 59630F (2005) https://doi.org/10.1117/12.624818

KEYWORDS: Refractive index, Transmittance, Optical coatings, Niobium, Solids, Crystals, Quartz, Reverse modeling, Thin film coatings, Deposition processes

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Proceedings Article | 5 October 2005 Paper

New optimization algorithm for the synthesis of rugate optical coatings

Alexander Tikhonravov, Michael Trubetskov, Tatiana Amochkina, Michael Kokarev, Norbert Kaiser, Olaf Stenzel, Steffen Wilbrandt, Dieter Gäbler

Proceedings Volume 5963, 596304 (2005) https://doi.org/10.1117/12.625072

KEYWORDS: Refractive index, Multilayers, Optical coatings, Reflectivity, Thin film coatings, Thin films, Optimization (mathematics), Optical design, Tolerancing, Optical filters

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Proceedings Article | 30 June 2000 Paper

Optical properties of heterogeneous thin solid films formed from inorganic and organic compounds

Olaf Stenzel, Andrei Lebedev, Raiko Jaehnig, Hartmut Kupfer, Thomas Pfeifer, Steffen Wilbrandt

Proceedings Volume 4097, (2000) https://doi.org/10.1117/12.390575

KEYWORDS: Silver, Metals, Absorption, Refractive index, Carbon, Optical properties, Amorphous silicon, Thin films, Solids, Composites

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Proceedings Article | 7 September 1999 Paper

Optical interference coating characterization using neural networks

Steffen Wilbrandt, Ralf Petrich, Olaf Stenzel

Proceedings Volume 3738, (1999) https://doi.org/10.1117/12.360123

KEYWORDS: Neural networks, Reflectivity, Thin films, Absorption, Transmittance, Refractive index, Coating, Silica, Surface roughness, Amorphous silicon

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Proceedings Article | 1 September 1995 Paper

Linear optical constants of ultrathin copperphthalocyanine films from transmittance and reflectance data: error function minimization when the film thickness is below 20 nm

Olaf Stenzel, Ralf Petrich, Steffen Wilbrandt, Ulf Beckers, Alexander Stendal, Kersten Voigtsberger, Christian von Borczyskowski

Proceedings Volume 2554, (1995) https://doi.org/10.1117/12.218200

KEYWORDS: Absorption, Oscillators, Reflection, Thin films, Reflectivity, Reflectance spectroscopy, Dielectrics, Molecules, Polarizability, Transmittance

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Showing 5 of 16 publications

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