Near infrared photodetector based on surface plasmon resonance

摘要

The hypothetical useful model belongs to the field of optoelectronics,Especially the radiation stimulation device. The task of the conceivable useful model is to reduce the size,Therefore,The cost of a single photodetector element. The technical achievements areIn the famous photodetectors, the semiconductor photosensitive layer is composed of AlGaAs wide area layer, The metal nanoparticle arrays with a certain diameter and density are composed of in and nano particles,In the same way,Arranged on the substrate plane,The combination of these characteristics provides the required resonant light absorption frequency. 2 liters.