| Issue |
EPJ Web Conf.
Volume 287, 2023
EOS Annual Meeting (EOSAM 2023)
|
|
|---|---|---|
| Article Number | 04019 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 4- Nanophotonics | |
| DOI | https://doi.org/10.1051/epjconf/202328704019 | |
| Published online | 18 October 2023 | |
https://doi.org/10.1051/epjconf/202328704019
Ultra-low noise meta-mirrors with optical losses below 500 ppm
1 Technical University of Braunschweig, Institute for Semiconductor Technology, Hans-Sommer-Str. 66, Braunschweig, Germany
2 CAVITY technologies UG, Wilhelmsgarten 3, Braunschweig, Germany
3 Laboratory for Emerging Nanometrology (LENA), Langer Kamp 6a/b, Braunschweig, Germany
4 University of Hannover, Welfengarten 1, Hannover, Germany
5 Physikalisch-Technische Bundesanstalt, Bundesallee 100, Braunschweig, Germany
* e-mail: j.dickmann@tu-braunschweig.de
Published online: 18 October 2023
Interferometric experiments are often limited in sensitivity by the thermal noise of the mirrors. In particular, interferometric gravitational wave detectors and laser stabilization resonators can benefit from reduced mirror noise. We present results of experimental investigations on micro-structured mirrors (meta-mirrors) and hybrid etalon mirrors (meta-etalons) promising particularly low thermal noise. We show the first characterization of meta-etalons scattering and absorption losses, demonstrating optical losses below 500 ppm. This level of optical losses is sufficient for planning direct thermal noise measurement in dedicated optical cavity experiments. These measurements would be very important for validating the thermal noise predictions. We present our development toward the integration of meta-etalons in ultra-stable optical cavities.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.