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More profound understanding of the nature of light and light-matter interactions in biology has enabled many applications in the biology and medical fields. So a new discipline is born, namely biophotonics. The aim of this book is to review the current state-of-the-art of the field by means of authoritative chapters written by the world leaders of the respective fields. Biosensors, biochips, optical tomography, optical microsurgery, photodynamics therapy, bioactivation of gene, photobiology of skin, and nanobiophotonics are each introduced and recent advances presented. This book will be useful not only to physicians, biologists, physicists, chemists, materials scientists, and engineers but also to graduate students who are interested in these rapidly developing fields.

Erbium Fiber Amplifiers is a comprehensive introduction to the increasingly important topic of optical amplification. Written by three Bell Labs pioneers, the book stresses the importance of the interrelation of materials properties, optical properties, and systems aspects of optical fiber amplifiers. All disc-based content for this title is now available on the Web.Key Features• Explains the theory of noise in optically amplified systems in an intuitive way• The book contains a discussion of components used in amplifier fabrication and of the attendant technologies used in real systems• The book provides basic tools for amplifier design as well as systems engineering, including the latest developments in WDM and soliton systems• The book discusses the fundamentals of rare earth ions for the reader desiring more depth in the topic• The book is for either the novice of experienced reader• The chapter have links between them to allow the reader to understand the relationship between the amplifier characteristics, noise, and systems applications• The book contains extensive references