Novel unimorph adaptive mirrors for astronomy applications
- We have developed a new type of unimorph deformable mirror for the correction of low-order Zernike modes. The mirror features a clear aperture of 50 mm combined with large peak-to-valley amplitudes of up to 35 μm. Newly developed fabrication processes allow the use of prefabricated, coated, super-polished glass substrates. The mirror's unique features suggest the use in several astronomical applications like the compensation of atmospheric aberrations seen by laser beacons, low light astronomy, and the use in woofer-tweeter systems. Additionally, the design enables an efficient correction of the inevitable wave-front error imposed by the floppy structure of primary mirrors in future large space telescopes. We have modeled the mirror by using analytical as well as finite element models. We will present design, key features and manufacturing steps of the deformable mirror.
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| Author: | Peter Rausch, Sven Verpoort, Ulrich Wittrock |
|---|---|
| URN: | urn:nbn:de:hbz:836-opus-6203 |
| DOI: | https://doi.org/10.25974/fhms-620 |
| DOI of first publication: | https://doi/org/10.1117/12.925966 |
| Parent Title (English): | Proc. SPIE 8447, Adaptive Optics Systems III, 844764 |
| Publisher: | SPIE |
| Document Type: | Article in Conference Proceedings |
| Language: | English |
| Date of Publication (online): | 2013/03/14 |
| Year of first Publication: | 2012 |
| Publishing Institution: | FH Münster - University of Applied Sciences |
| Release Date: | 2013/03/14 |
| Institutes: | Physikingenieurwesen (PHY) |
| Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
| Publication list: | Wittrock, Ulrich |
| Licence (German): |  Zweitveroeffentlichung |
