This book updates Volumes I and II of the Handbook of Laser Science and Technology. Together, these three volumes constitute a comprehensive listing of lasers and laser transitions and should be an important reference for all scientists and engineers working in the area of laser research and development. In the Handbook of Laser Science and Technology, Supplement 1: Lasers, experts summarize the discovery of new lasers and the latest advances in various types of solid state lasers, organic dye and inorganic liquid lasers, neutral, ionized and molecular gas lasers, and masers. The book also includes recent developments in X-ray lasers, free electron lasers, tunable solid state lasers, and fiber lasers. Key features of the supplement are its tables of gas and solid state lasers, arranged by wavelength so researchers can quickly find laser wavelengths for specific applications. Extensive references to the primary literature are provided throughout this supplement.