Stereo-microscopy of atomic arrangements on thin films using circular dichroism in x-ray photoelectron angular distribution

Abstract

We present a new direct method of“ stereo-microscope” for three dimensional structure analysis of thin films, with which one can realize three-dimensional atomic arrangement directly by eyes. The azimuthal shifts of forward focusing peaks in photoelectron angular distribution pattern obtained with left and right helicity light are the same as the parallax in stereo-view. Taking advantage of this phenomenon of circular dichroism in photoelectron angular distribution, one can realize a stereoscope of atomic arrangement. A display-type spherical-mirror analyzer can obtain stereoscopic photographs directly on the screen without any computer-aided conversion process. Some recent results are described.