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 |
|---|---|
| DOI: | https://doi.org/10.1364/OE.26.028119 |
| ISSN: | 1094-4087 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/30469867 |
| Title of parent work (English): | Optics express : the international electronic journal of optics |
| Publisher: | Optical Society of America |
| Place of publishing: | Washington |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2018/10/15 |
| Publication year: | 2018 |
| Release date: | 2021/09/01 |
| Volume: | 26 |
| Issue: | 21 |
| Number of pages: | 12 |
| First page: | 28119 |
| Last Page: | 28130 |
| Funding institution: | Deutsche Forschungsgemeinschaft (DFG) within the priority program "Active Micro-optics" (SPP 1337) [OS111/35-1, STU164/29-1, MI500/22-1] |
| Organizational units: | Weitere Einrichtungen / UP Transfer |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Peer review: | Referiert |
| Publishing method: | Open Access / Gold Open-Access |
| DOAJ gelistet | |
| License (German): |  CC-BY - Namensnennung 4.0 International |
