Nanophotonics and spectroscopy has advanced rapidly in recent years. Experimental research on
nanophotonics is very active. In addition to experimental research on the principles and
applications of nanophotonics computational simulation research on its various physical
mechanisms and phenomena is equally important. The simulation of the optical properties of
molecules or crystals such as electronic spectra (absorption and emission spectra etc.) and
vibrational spectroscopy has extraordinary guiding significance for experiments. The current
computational simulation technology can also explain and analyze the physical mechanisms behind
phenomena. However among the many computational simulation software programs available the
operation methods and application scenarios are different. The barrier for new users to conduct
research with computational simulation is high. Even for researchers with some experience it
is not easy to develop a comprehensive understanding of the various software programs keywords
programming languages and auxiliary programs. This book serves as an introductory book for
beginners to get started with the technology and a handbook for experienced readers to quickly
look up for commands and script usage. It is a handy reference for graduate students and
researchers engaged in the study of photonics and optics.
