A new solution for mirror coating in γ-ray Cherenkov astronomy
Abstract
In the γ-ray Cherenkov Astronomy framework mirror coating plays a crucial role in defining the light response of the telescope. We carried out a study for new mirror coating solutions with both a numerical simulation software and a vacuum chamber for small sample production. In this article, we present a new mirror coating solution consisting of a 28-layer interferometric SiO2-TiO2-HfO2 design deposited on a glass substrate, whose average reflectance is above 90 % for normally incident light in the wavelength range between 300 and 550 nm.
- Publication:
-
Experimental Astronomy
- Pub Date:
- November 2014
- DOI:
- 10.1007/s10686-014-9398-x
- arXiv:
- arXiv:1406.0622
- Bibcode:
- 2014ExA....38....1B
- Keywords:
-
- Mirror coating;
- Reflectance;
- IACTs;
- Astrophysics - Instrumentation and Methods for Astrophysics
- E-Print:
- 6 pages, 5 figures. Article submitted to Experimental Astronomy, the final publication is available at link.springer.com