Easily digestible for beginners and useful to seasoned professionals, this book describes the key concepts of the computational Finite Difference Time Domain (FDTD) method, discusses the newest and most popular computational nanotechnologies using the FDTD method, and predicts future applications by examining interdisciplinary research from world-renowned experts. Complete with case studies, examples, supportive appendices, and FDTD codes accessible via a companion website, the text delivers a practical introduction to the use of FDTD in nanotechnology and serves as a valuable reference for both academia and industry.