Coauthored by the developer of nanophotonics,this book outlines physically intuitive concepts of the subject using a novel theoretical framework that differs from conventional wave optics. After reviewing the background, history, and current status of research and development in nanophotonics and related technologies, the authors present a unique theoretical model to describe the interactions among nanometric material systems via optical near-fields. They then explore nanophotonic devices and fabrication techniques and provide examples of qualitative innovation. The final chapter looks at how the assembly of nanophotonic devices produces a nanophotonic system.