Polychromatic radiation that enters a spectrometer goes through a number of optical elements before reaching the detector. Since all elements that comprise the spectrometer are not perfect, the radiation that reach the detector and outlines the operational spectral range can be contaminated with stray light. Stray light is a critical parameter for a spectrometer and can be defined as all radiation of undesired wavelengths that reach and trigger a signal at the detector.
Stray Light Effect on Absorbance
Stray Light Causes
In order to strongly reduce the stray light, Sarspec specialists have simultaneously optimized the optical and mechanical designs of the spectrometers. By using a symmetrical Czerny-Turner configuration and the best quality optical and non-optical elements, it is possible to reduce stray light levels to less than 0.1%, over the entire dynamic range of the Sarspec spectrometer.