Recent progress in low light level superspeed EMCCD imaging

Low light level imaging based on Electronic Multiplying CCD (EMCCD) is the focus of todays aerospace research, just as its obvious advantages and broad application prospects. The EMCCDs multiplying mechanism gives electronic multiplying driving high-speed and high-voltage characters. However, with the increasing demand for high speed image acquisition, the requirement of driving speed become higher, the superspeed driving mechanism become scientific problems that are not completely solved yet. The recent developments of the EMCCD imaging have been reviewed in this paper and new methods based on improved totem pole, EMCCD high voltage multiplying electrodes lumped parameters lumped capacitance series resonance, high frequency voltage autotransformation, and voltage transformation control model of EMCCD were proposed for the shortcomings of reported methods. Finally, the new experimental results have been reported and the future research prospects have been proposed.