High-speed electron-optical image converters for studying laser radiation with picosecond and femtosecond time resolution

On the basis of experiments and theoretical estimates, ways of modernizing multistage image converters of the PIM-UMI are formulated so as to appreciably increase their time and space resolution in the linear scanning mode. The main models of ultra-high-speed image converters used for studying lasers and laser plasma are described. A method of recording sinusoidally modulated laser radiation for measuring the dynamic characteristics of image converters was developed further. Specific characteristics of the circuits of two-frequency neodymium lasers are discussed. Individual results of measurement of the time MTF of the converters studied are presented. Ways of further improving ultrahigh-speed image converters are outlined.