Jun CHEN, Tsukasa HIRAYAMA, Guanming LAI, Takayoshi TANJI, Kazuo ISHIZUKA and Akira TONOMURA

Electron Wavefront Project, Research Development Corporation of Japan, c/o Faculty of Engineering, Toyo University, Saitama, 350 Japan

(Accepted August 29, 1994)

This paper describes interference microscopy using a liquid-crystal panel as a rewritable medium. This system makes it possible to observe the dynamic behavior of a magnetic field. Experimental results obtained while observing dynamic domain-wall motion in a thin permalloy film are shown.

Key words : electron holography, video-rate electron-holographic interference microscopy, liquid-crystal panel, dynamic observation