Roshan L. Aggarwal retired from the Massachusetts Institute of Technology (MIT) in 2016 after 51 years of service, having served as Senior Research Scientist of the Physics Department and as Associate Director of the Francis Bitter National Magnet Laboratory. His publications include Introduction to Optical Components (2018), Diluted Magnetic (Semimagnetic) Semiconductors (1987), and Solids and Plasmas in High Magnetic Fields (1979).Kambiz Alavi is a Professor in the Electrical Engineering Department of the University of Texas at Arlington. He received his SB, SM, and PhD degrees in Physics from the Massachusetts Institute of Technology (MIT). His publications include Introduction to Optical Components (2018) and a number of book chapters.