Dr. Joachim Stumpe Profile

Dr. Joachim Stumpe

at IDM-Teltow

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 21 May 2018 Presentation + Paper

Bragg polarization gratings used as switchable elements in AR/VR holographic displays

Oksana Sakhno, Yuri Gritsai, Hagen Sahm, Joachim Stumpe, Michael Wegener

Proceedings Volume 10676, 106760F (2018) https://doi.org/10.1117/12.2309788

KEYWORDS: Polarization, Diffraction, Diffraction gratings, Holography, Switching, Polymers, Liquid crystals, Digital holography

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The high coherence of laser light sources is a key to the application of diffractive optics usable in holographic AR/VR displays. This can be combined with switchable diffractive elements, which are advantageous for several optical functions used in immersive holographic displays such as shutters, polarization filters, for rapid beam deflection and selection. We demonstrate a compact, effective and robust diffraction wide-angle switchable beam-deflecting device based on circular polarization gratings possessing Bragg-performances (Bragg-PG) and a polarization switch. Such grating/polarization switch pair may, for instance, be a discrete switchable deflection element or as a switching element for pre-deflection with field lenses for application in holographic AR/VR displays. Micrometer-thick circular polarization gratings characterized by high diffraction efficiency (DE > 95%), large diffraction angles (< 30°) and wide angular and wavelength acceptance were developed. In the presented embodiment, the output signal is controlled between the zero- and first-diffraction orders by the handedness of circular polarization of the incident light. Forming a stack of two such oppositely aligned gratings can double the deflection angle. These gratings are the result of a two-step photochemichal/thermal processing procedure of a photocrosslinkable liquid crystalline polymer (LCP). The holographic patterning provides a high spatial resolution (period < 700 nm) and the arbitrary orientation of the LC director as well as high optical quality and thermal and chemical stability of the final gratings. Highly efficient (diffraction efficiency, DE > 95% in the vis spectral range) and stable symmetric and slanted circular Bragg polarization gratings were fabricated using the developed material and processing technique. The high usable diffraction angles combined with high DE make the Bragg-PG attractive for HMD AR/VR applications because of the system inherent short focus lengths and large numerical apertures needed to meet the low space budget in HMD and other optical systems.

Proceedings Article | 7 October 2014 Paper

Tunable non-pixelated spatial polarization shaping including an integrated optical addressing unit

Frederik Schaal, Michael Rutloh, Susanne Weidenfeld, Joachim Stumpe, Wolfgang Osten

Proceedings Volume 9181, 91810H (2014) https://doi.org/10.1117/12.2062110

KEYWORDS: Liquid crystals, Polarization, Vertical cavity surface emitting lasers, Picture Archiving and Communication System, Diffractive optical elements, Beam shaping, Birefringence, Integrated optics, Channel projecting optics, Switching

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Proceedings Article | 1 May 2012 Paper

Enhancement of QDs photoluminescence by localized surface plasmon effect of Au-NPs

Esmaeil Heydari, Tonino Greco, Joachim Stumpe

Proceedings Volume 8424, 842436 (2012) https://doi.org/10.1117/12.922778

KEYWORDS: Luminescence, Plasmons, Surface plasmons, Metals, Absorption, Resonance enhancement, Polymethylmethacrylate, Scattering, Magnesium, Nanoparticles

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Proceedings Article | 15 February 2012 Paper

Voltage tunable polymer laser device

Sebastian Döring, Matthias Kollosche, Torsten Rabe, Guggi Kofod, Joachim Stumpe

Proceedings Volume 8235, 82351N (2012) https://doi.org/10.1117/12.911886

KEYWORDS: Polymers, Tunable lasers, Electroactive polymers, Wavelength tuning, Actuators, Laser applications, Waveguides, Electrodes, Optical pumping, Visible radiation

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Proceedings Article | 19 May 2010 Paper

Azobenzene-based surface relief gratings for thin film distributed feedback lasers

Sebastian Döring, Torsten Rabe, Regina Rosenhauer, Olga Kulikovska, Niko Hildebrandt, Joachim Stumpe

Proceedings Volume 7722, 77221H (2010) https://doi.org/10.1117/12.854693

KEYWORDS: Thin films, Polymers, Holography, Polymer thin films, Diffraction gratings, Ultraviolet radiation, Adhesives, Waveguides, Diffraction, Modulation

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Proceedings Article | 14 May 2010 Paper

All-optical fabrication of 2D and 3D photonic microstructures in polymeric materials

Yuri Gritsai, Leonid Goldenberg, Olga Kulikovska, Oksana Sakhno, Joachim Stumpe

Proceedings Volume 7716, 77161V (2010) https://doi.org/10.1117/12.853811

KEYWORDS: Diffraction, Photomasks, Diffraction gratings, Polymers, Holography, Polarization, Holographic materials, Refractive index, Modulation, Nanocomposites

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Proceedings Article | 13 May 2010 Paper

Tunable diffractive optical elements on various electro active polymers

Sebastian Döring, Matthias Kollosche, Niko Hildebrandt, Joachim Stumpe, Guggi Kofod

Proceedings Volume 7716, 77160F (2010) https://doi.org/10.1117/12.854258

KEYWORDS: Diffraction gratings, Diffraction, Polymers, Actuators, Diffractive optical elements, Holography, Manufacturing, Electro optic polymers, Thin films, Distortion

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Proceedings Article | 9 April 2010 Paper

A novel approach to tunable diffractive transmission gratings based on dielectric elastomer actuators

Matthias Kollosche, Sebastian Döring, Guggi Kofod, Joachim Stumpe

Proceedings Volume 7642, 76422Y (2010) https://doi.org/10.1117/12.847533

KEYWORDS: Diffraction gratings, Diffraction, Dielectric elastomer actuators, Polymers, Electrodes, Holography, Actuators, Physics, Manufacturing, Polymer thin films

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Proceedings Article | 25 September 2009 Paper

Holographic patterning of organic-inorganic photopolymerizable nanocomposites

Oksana Sakhno, Leonid Goldenberg, Tatiana Smirnova, J. Stumpe

Proceedings Volume 7487, 74870H (2009) https://doi.org/10.1117/12.846463

KEYWORDS: Holography, Nanocomposites, Polymers, Diffraction gratings, Composites, Diffraction, Metals, Silver, Gold, Titanium dioxide

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Proceedings Article | 15 May 2008 Paper

Generation of microstructures in novel supramolecular ionic materials based on azobenzene

Olga Kulikovska, Lazar Kulikovsky, Leonid Goldenberg, Joachim Stumpe

Proceedings Volume 6999, 69990I (2008) https://doi.org/10.1117/12.781480

KEYWORDS: Diffraction gratings, Polymers, Diffraction, Birefringence, Modulation, Chromophores, Polarization, Holography, Polymer thin films, Atomic force microscopy

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Proceedings Article | 4 April 2005 Paper

New photochromic polyimides

Ewa Schab-Balcerzak, Beate Sapich, Roland Hass, Joachim Stumpe

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.585015

KEYWORDS: Polymers, Dichroic materials, Polymer thin films, Anisotropy, Absorbance, Absorption, FT-IR spectroscopy, Glasses, Spectroscopy, Chromophores

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Proceedings Article | 26 October 2004 Paper

POLIPHEM: new type of nanoscale polymer-LC-switchable photonic devices

Oksana Sakhno, Sergey Slussarenko, Joachim Stumpe

Proceedings Volume 5521, (2004) https://doi.org/10.1117/12.566074

KEYWORDS: Polymers, Diffraction gratings, Holography, Liquid crystals, Diffraction, Electro optics, Refractive index, Photopolymerization, Anisotropy, Modulation

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Proceedings Article | 5 January 2004 Paper

Light-induced anisotropy of stilbene containing LC polymers and its thermal development by self-organization

Regina Rosenhauer, Thomas Fischer, Joachim Stumpe

Proceedings Volume 5213, (2004) https://doi.org/10.1117/12.506809

KEYWORDS: Polymers, Liquid crystals, Absorbance, Annealing, Anisotropy, Dichroic materials, Luminescence, Liquids, Crystals, Absorption

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Proceedings Article | 10 November 2003 Paper

Three-dimensional anisotropies induced by light in thin polymer films

Carl Jung, Joachim Stumpe

Proceedings Volume 5212, (2003) https://doi.org/10.1117/12.506745

KEYWORDS: Polymers, Polymer thin films, Annealing, Refractive index, Absorbance, Liquid crystals, Liquids, Ellipsometry, Crystals, Spectroscopy

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Proceedings Article | 12 December 2002 Paper

Light-induced orientation of dyes in azobenzene containing LC polymers

Regina Rosenhauer, Th. Fischer, Joachim Stumpe, R. Giminez, Milagros Pinol, Jose-Luis Serrano, Dick Broer

Proceedings Volume 4799, (2002) https://doi.org/10.1117/12.453295

KEYWORDS: Polymers, Absorbance, Luminescence, Annealing, Liquid crystals, Absorption, Ultraviolet radiation, Anisotropy, Polymethylmethacrylate, Chromophores

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Proceedings Article | 11 December 2002 Paper

Surface electrical potential of the aligning polymer substrates and dielectric properties of LC layers

R. Kravchuk, Oleg Yaroshchuk, O. Kovalchuk, P. Karageorgiev, B. Stiller, Joachim Stumpe

Proceedings Volume 4938, (2002) https://doi.org/10.1117/12.486657

KEYWORDS: Liquid crystals, Dielectrics, Ultraviolet radiation, Polymers, Electrodes, Coating, Gold, Ions, LCDs, Image processing

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Proceedings Article | 5 November 2002 Paper

Polymer surface relief structures caused by light-driven diffusion

Olga Kulikovska, Kati Gharagozloo-Hubmann, Joachim Stumpe

Proceedings Volume 4802, (2002) https://doi.org/10.1117/12.453480

KEYWORDS: Polymers, Polarization, Diffraction gratings, Dichroic materials, Absorption, Polymer thin films, Diffraction, Microscopes, Modulation, Chromophores

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