| Issue |
EPJ Web Conf.
Volume 287, 2023
EOS Annual Meeting (EOSAM 2023)
|
|
|---|---|---|
| Article Number | 05007 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 5- Optical Materials | |
| DOI | https://doi.org/10.1051/epjconf/202328705007 | |
| Published online | 18 October 2023 | |
https://doi.org/10.1051/epjconf/202328705007
Design and fabrication of a vanadium dioxide-based actively switchable wire grid polarizer for near-infrared applications
1 Friedrich Schiller University Jena, Institute of Applied Physics, Albert-Einstein-Str. 15, 07745 Jena, Germany
2 Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena, Germany
3 Munich University of Applied Sciences, Department of Applied Sciences and Mechatronics, Lothstr. 34, 80335 Munich, Germany
* Corresponding author: walther.markus@uni-jena.de
Published online: 18 October 2023
This study introduces an actively switchable wire grid polarizer exploiting the semiconductor-metal transition of vanadium dioxide. Operating at a near-infrared wavelength, the device features a SiO2 substrate with VO2 deposited by atomic layer deposition. We demonstrate the design using rigorous coupled wave analysis and show a viable fabrication route. Polarisation-resolved spectral transmission measurements show switching of the extinction ratio from 37.5 (on-state) to 1.6 (off-state). Despite observed deviations between measured and theoretical transmission values, the device shows potential in miniaturized imaging processes, polarization measurements, and ellipsometry.
© The Authors, published by EDP Sciences, 2023
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