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arXiv · 1406.0622

A new solution for mirror coating in $\gamma$-ray Cherenkov Astronomy

Antonio Bonardi·Gerd Pühlhofer·Stephan Hermanutz·Andrea Santangelo
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Abstract

In the $\gamma$-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 SiO$_{2}$-TiO$_{2}$-HfO$_{2}$ 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.

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Antonio Bonardi, Gerd Pühlhofer, Stephan Hermanutz, Andrea Santangelo. 2014-06-03. A new solution for mirror coating in $\gamma$-ray Cherenkov Astronomy. https://doi.org/10.1007/s10686-014-9398-x

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