When the light incident on your detector needs to be manipulated, the best course of action may be to apply a coating or filter specific to your application. For maximum signal, AR coatings can be applied to one or both sides of windows, and also to the photodiode chip itself.
Band-pass or long-pass filters can be applied to windows to tailor the working wavelength range of the detector system. In high-power scenarios, partially reflective coatings can attenuate optical power to a manageable level.
Where reflections are undesirable, absorptive filters can often be used for attenuation in place of a traditional glass window.
GPD uses well-selected coatings for many of our standard products, and we are happy to discuss the requirements of your project so we can offer the best solution.
Speak to one of our representatives today to learn more.