Hear from Dr. Piprek at this Q&A session: https://www.crcpress.com/go/editor_qa_session_joachim_piprek Joachim Piprek received his Ph.D. degree in theoretical physics from Humboldt University in Berlin, Germany, in 1986. For more than two decades, he worked in industry and academia on modeling, simulation, and analysis of various optoelectronic devices. Dr. Piprek has taught graduate courses at universities in Germany, Sweden, and in the United States. He was invited guest editor for several journal issues on optoelectronic device simulation and currently serves as an executive editor of Optical and Quantum Electronics as well as an associate editor for the Journal of Computational Electronics. Dr. Piprek is founder and co-chair of the annual conference on Numerical Simulation of Optoelectronic Devices and he has also (co-)chaired several SPIE conferences. He has published 3 books, 6 book chapters, 4 patents, and more than 200 research papers.