A CALIBRATION METHOD AND DEVICE FOR RESPONSIVITY PARAMETERS OF A SINGLE-PIXEL FIELD EFFECT SELF-MIXING TERAHERTZ DETECTOR

摘要

#$%^&*AU2019101075A420191024.pdf#####Abstract The invention provides a calibration method and device for responsivity parameters of a single-pixel field effect self-mixing terahertz detector. The said device of the invention at least comprises six parts, namely a terahertz source module, a detector module, a translation table and fixture device, an optical lens group, a data acquisition processing module, a display module and the like. As the traditional standard light source calibration method has high uncertainty, and errors such as uncertainty factors which cannot be accurately measured are easily introduced in the calibration process, the calibration method and the device for the responsivity parameter of the single-pixel field effect self-mixing terahertz detector can realize precise calibration on the single-pixel terahertz detector by using the calibration method compared with the standard detector, and reduce the uncertainty of value transmission. By adding a monitoring detector to the wave path, the influence of the wave source stability on the transmission result is eliminated, and the calibration result is more accurate. With the increasingly wide application of terahertz detector devices in many fields such as high-speed broadband communication, functional material development, biomedical imaging, airport and port security check, illegal cooking oil detection, hazardous chemical monitoring and early warning, the terahertz detector device has certain industry utilization value.1/2 Opticalltens Translation table Standard and fixture device Terahertz detector source module Detector to be tested Surveillance detector Data Interface Intefaceacquisition display module 4 acsin and processing module Figure 1 4 21 5 3 122 23 -----, L . _ Figure 2