Modeling of HgCdTe photoconductive infrared detector with metallic nanostructures

Abstract

An HgCdTe photoconductive infrared detector with metallic nanostructures has been numerically studied. The plasmonic resonant absorption and the photo current response spectra of the detector are investigated by using a combination of the FDTD method and FEM method. The simulated results show the dependence between the geometric design and the performance of the detector. A higher photo response can be achieved in comparison to common HgCdTe photoconductive infrared detector.