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Optically addressed modulator for tunable spatial polarization control
- We present an optically addressed non-pixelated spatial light modulator. The system is based on reversible photoalignment of a LC cell using a red light sensitive novel azobenzene photoalignment layer. It is an electrode-free device that manipulates the liquid crystal orientation and consequently the polarization via light without artifacts caused by electrodes. The capability to miniaturize the spatial light modulator allows the integration into a microscope objective. This includes a miniaturized 200 channel optical addressing system based on a VCSEL array and hybrid refractive-diffractive beam shapers. As an application example, the utilization as a microscope objective integrated analog phase contrast modulator is shown. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Author details: | Frederik SchaalGND, Michael Rutloh, Susanne WeidenfeldGND, Joachim Stumpe, Peter MichlerGND, Christof Pruss, Wolfgang OstenORCiDGND |
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URN: | urn:nbn:de:kobv:517-opus4-446263 |
DOI: | https://doi.org/10.25932/publishup-44626 |
ISSN: | 1866-8372 |
Title of parent work (German): | Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe |
Publication series (Volume number): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (1001) |
Publication type: | Postprint |
Language: | English |
Date of first publication: | 2020/09/24 |
Publication year: | 2018 |
Publishing institution: | Universität Potsdam |
Release date: | 2020/09/24 |
Tag: | alignment; command surfaces; films; light modulator; nematic liquid crystals; polymer |
Issue: | 1001 |
Number of pages: | 14 |
First page: | 28119 |
Last Page: | 28130 |
Source: | Optics Express 26 (2018) 21, pp. 28119-28130 DOI:10.1364/OE.26.028119 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät |
DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Peer review: | Referiert |
Publishing method: | Open Access / Green Open-Access |
License (German): | CC-BY - Namensnennung 4.0 International |