Mirrors can be produced as broadband mirrors for the whole visible range or as wavelength-selective mirrors reflecting only one laser wavelength or a small range of wavelengths for a LED light source.
Whereas broadband mirrors will reflect typically only 97% - 98% in the whole VIS range, special mirrors with a reflectivity higher than 99% will be possible for a selected wavelength or a small range of wavelengths.
Such selective mirrors can be calculated for different wavelengths, e.g. RGB.
Typically such mirrors are used under AOI 45°, but also other angles of incidence can be realized.
The diagram shows measured spectral reflectivity curves for a blue reflecting mirror under AOI 40° - 50° measured in p-polarization. The reflectivity exceeds > 99% for AOI 45° and > 98,5% for AOI from 40° - 50°.
Hint: For all selective mirrors under non-perpendicular angles of incidence polarization effects have to be taken into account.
We use cookies. Some of them are necessary to make the website usable. Others help us display information that is relevant and engaging to you. As data protection is important to us, we ask you to decide on the scope of use. You can either accept all cookies or choose your individual settings. Thanks and enjoy our website!