ABSTRACT
This chapter aims to develop the method to determine the linear polarization of light emitted from nanostructures by means of polarized cathodoluminescence (CL) spectroscopy using an ellipsoidal mirror fitted in a transmission electron microscope. Collecting polarized CL light by using an ellipsoidal mirror with a proper reflecting surface as well as simulating polarized CL intensities with full consideration of the effect of reflection in the mirror, one can determine the polarization of the CL light. In order to simulate the polarized CL intensity, one can treat CL light as a group of linearly polarized plane waves with various propagation vectors and with various polarization vectors. The chapter provides a systematic analysis of the polarization of the CL light from a one-dimensional superlattice structure. The polarized CL light emitted from a nanostructure is first reflected in the mirror, and the reflected light is then collected into a photo-detector via a polarizing plate.
