Textbook in PDF format This book provides an introduction to and an overview of the multifaceted area of dynamics and nonlinearities related to optical excitations in semiconductors. It is a revised and significantly extended edition of the well-established book by C. Klingshirn split into two volumes and restructured to make it more concise. Inserts on important experimental techniques, reference to topical research and novel materials, as well as consideration of photonic applications support research-oriented teaching and learning