ONE-PHOTON AND 2-PHOTON MAGNETOOPTICAL SPECTROSCOPY OF INSB AND HG1-XCDXTE

This chapter discusses the one- and two-photon magneto-optical spectroscopy of InSb and Hg1-x CdxTe. Spectroscopy is a very important area of science because most of the knowledge about the structure of atoms, molecules, and the various states of matter is based on some sort of spectroscopic investigation. Magneto-optical spectroscopy is a valuable and powerful means for characterizing and understanding semiconductors. For example, magneto-optical studies have been carried out to investigate various features and properties of semiconductors, such as the conduction or valence bands, excitonic levels, impurity or defect levels, the density of electronic states, carrier lifetimes, band symmetries, effective masses, and the effects of anisotropy. In addition, magneto-optics has been successfully used to study the influence of externally controlled parameters, such as temperature, pressure, and electric and magnetic fields. Narrow-gap semiconductors (NGSs) have long been recognized for their special characteristics that give rise not only to the physical effects that can be studied but also to useful technological applications. © 1992, Academic Press, Inc.