Quantitative phase-sensitive imaging in a transmission electron microscope

This paper presents a new technique for forming quantitative phase and ampl itude electron images applicable to a conventional transmission electron mi croscope. With magnetised cobalt microstructures used as a test object, we use electron holography to obtain an independent measurement of the phase s hift. After a suitable calibration of the microscope, we obtain quantitativ e agreement of the phase shift imposed on the 200 keV electrons passing thr ough the sample. (C) 2000 Elsevier Science B.V. All rights reserved.