Voltage division position sensitive detectors based on photoconductive materials - Part I: Principle of operation

A simple contact structure is Proposed for the realization of Position Sensitive Detectors based on a Voltage Division principle in which the sensors operate in a photoconductive regime. The transfer function of the system is calculated by a detailed analysis of the operative principle of the device. Moreover, the expected performances of the photodetectors are discussed as a function of the main system parameters, underlying the benefits due to the adopted design.