Photoresponse nonlinearity in platinum silicide photodiodes

摘要

Sources of photoresponse nonlinearity in charge-integrating platinum silicide photodiodes are identified. Simulation results are presented, illustrating the magnitude of this nonlinearity as a function of wavelength, initial bias voltage, and stray capacitance. Additional simulation studies are discussed, revealing the impact of photoresponse nonlinearity on slope-and-offset-corrected thermal imaging. Application charts are provided, indicating the proper choice of calibration points for platinum silicide imaging systems.