The high specular bench is 10 meters long, giving it a minimum resolution of 0.02° from the specular direction. It is also equipped with synchronous detection, which permits us to obtain a very high dynamic range (around 1013) and to access a very low level of scattering.
In addition, it allows measurements for a wide range of wavelengths, from ultraviolet to far infrared, including sources at 3.39µm and 10.6µm.
In addition, the high specular bench is situated in a class 100 clean room (ISO 5). This limits the risk of contaminating the samples, which are also handled with all the necessary protective equipment (gloves, gown, mask, etc.).
Its far-infrared measurements, high dynamic range, and high resolution make it ideally suited to the measurement of the spatial variation of BSDF across samples.
The following table shows the specifications of the bench: