METHOD OF RECORDING TIME PROFILE OF FRONT OF LIGHT PULSE AND DEVICE THEREFOR

摘要

FIELD: optics.SUBSTANCE: invention relates to optical measurements and concerns method and device for front light pulse time profile recording. Method consists in fact that pulsed radiation is generated and directed on optically transparent plate. Reflected from plate part of radiation is passed through measuring unit. Passed through optically transparent plate part of radiation is passed through additional measuring unit. Radiation in measuring units is attenuated and are divided into several streams, each of which is stirred till homogeneity. Streams from measuring units are transmitted to streak camera with required time difference by transport fibres. After light pulse exit behind streak camera screen streak camera locking is performed by means of damping unit. At that, image signals time sweep intensity of light pulse are obtained from additional measuring unit, which are taken into account during reconstruction of front.EFFECT: technical result consists in increase of dynamic measurement range profile front and wider range of powers of detected pulse.4 cl, 2 dwg