Performance Analysis of Infrared Detectors Based on Fabry-Perot Resonance
Studies related to the absorption performance of infrared detectors have been a research area of great interest,and there is still potential for further improvement of the absorption rate.In this study,a metal-semiconductor-metal(MSM)-type quan-tum well infrared detector structure was designed and its absorption rate was simulated and calculated in simulation software.The re-sults show that the structure can undergo Fabry-Perot resonance(FP resonance)at a specific frequency and enhance the absorption significantly.In addition,factors such as the number of layers of the quantum well and the angle of incidence affect the FP resonance frequency,and the designed MSM-type quantum well infrared detector exhibits the best absorption performance when the number of layers of the quantum well is 7 and the angle of incidence is between 0°and 15°.