Abstract
This chapter discusses the performance of a picosecond streak camera used in conjunction with a photodiode array measuring system. Complete diagnostic in laser-matter-interaction experiments requires characterization of the laser pulse incident on the target and some experimental plasma parameters. The ultrafast streak camera is an important comprehensive diagnostic tool for the measurements of these parameters. The use of streak cameras is still often limited by the long procedure required for film processing before delivering useful information. This chapter presents some works undertaken to achieve automatic readout, processing, and display of streak images. It shows the construction of an image sensor using an RL 1024 S Reticon linear photodiode array, which presents interesting properties such as good linearity, high dynamic range, and insignificant lag. This last feature allows the measurement of the trace that is produced by the streak camera used in a single shot, which is extremely difficult with TV cameras, which are valuable for their high sensitivity and dynamic range in low-light level permanent trace measurements. After a brief look at the theory of operation of photodiode arrays and an examination of their characteristics, the chapter describes the acquisition device and provides results obtained with this system coupled to an S·1 picosecond streak camera.
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