Investigation And Implementation Of Control Software System For Single Photon Time-resolved Imaging Spectrometer

The single photon time-resolved imaging spectrometer is a new type of instrument developed using the principle of "time-resolved imaging spectroscopy".It combines single-photon time-resolved technology with compressed sensing theory,effectively eliminating the problems of sensitivity and the dimensional due to the increasing of dimensions.And it is a new generation of high-performance optics based on the new theory.The subject of this study is the software system of the single photon time-resolved imaging spectrometer.The single-photon time-resolved imaging spectroscopy software system is the core part of the instrument and is an important guarantee for the instrument to work properly and perform experiments reasonably.The software system mainly includes several important parts such as counter module,orthogonal DMD module,diamond DMD module,time measurement module,synchronization control module and image reconstruction module.The counter module is realized four digital micromirror device(DMD)and PMT/count function of single photon counter;orthogonal DMD module and diamond DMD module to achieve the DMD chip flip control and complete optical modulation;time measurement module achieves the time scale measurement of DMD synchronization signal,the laser pulse signal and pulse signal detector;and image reconstruction module is reconstruct the scientific experiment data of image based on the TVAL3 algorithm.In addition to the image reconstruction module,other modules work in combination to achieve compression sampling to obtain experimental data.Experiments showed that the software of single-photon time-resolved imaging spectrometer is applied to the experiment,and its function and performance are thoroughly tested.The satisfactory results have been obtained.The calculation time and error of single-photon time-resolved imaging spectrometer has great advantages over the traditional imaging techniques.Under the premise that the recovery precision is basically unchanged,the image reconstruction speed of the improved TVAL3 algorithm could reach more than 10 times that of other reconstruction algorithms.In view of this,single-photon time-resolved imaging spectrometer will be widely used in front-end science industries and high-tech fields such as ultra-weak light imaging.