Intensity-independent high polarization- or wavelength-sensitive opto-electronic switches

We present a concept for a highly integrated opto-electronic switch that is sensitive to the wavelength or linear polarization, respectively, of the incident light but operates independent of the optical input power. First demonstration devices show interesting features like high sensitivity, steep switching flanks, a switching contrast of up to View the MathML source and a photoconductive gain of up to View the MathML source. Furthermore, the devices can be used for both threshold and bistable switching.