Study of ultrafast processes in matter by means of time-resolved electron diffraction and microscopy
Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow, 108840 Russia
2 Moscow Technological University, 86 Vernadskogo ave., Moscow, 119571 Russia
3 Moscow State University, 1 Leninskie Gory, Moscow, 119991 Russia
4 Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, 142432 Russia
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Published online: 31 October 2017
One of the most fundamental problems of modern natural science is the direct observation of atomic motions in the course of various processes. For this purpose, in the experiment it is necessary to provide high spatial-temporal resolution. The solution to this problem is achieved by using a pulsed electron beam of ultrashort duration to create a stroboscopic diffraction pattern in the method of time-resolved electron diffraction (TRED). Three types of experimental schemes have been developed at our lab. The experimental complex includes (i) 20-keV table-top apparatus for TRED, (ii) 75-keV ultrafast transmission electron microscope and (iii) lensless table-top device for femtosecond electron diffraction. The obtained experimental results are presented.
© The Authors, published by EDP Sciences, 2017
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