Luminescence spectrometer with three monochromators

The client's task was to extend the FLS1000 photoluminescence spectrometer (installed by our company in 2019) with new components that will enable both efficient measurement of strongly scattering samples and determination of quantum yield of powder and liquid samples.

We replaced the single excitation monochromator with a powerful double-coupled excitation monochromator with a focal length of 2 x 325 mm and a level of suppression of unwanted stray light of 1:1010. The spectrometer was further complemented with a compatible integration sphere to enable measurement of photoluminescence spectra, determination of the quantum yield of photoluminescence and measurement of optical reflectance of powder and liquid samples.