This book provides information to the state of art of research in nanotechnology and nano medicine and risks of nano technology. It covers an interdisciplinary and very wide scope of the latest fundamental research status and industrial applications of nano technologies ranging from nano physics, nano chemistry to biotechnology and toxicology. It provides information to last legislation of nano usage and potential social impact too. The book contains also a reference list of major European research centers and associated universities offering licences and master of nano matter. For clarity and attractivity, the book has many illustrations and specific inserts to complete the understanding of the scientific texts.

Just like the periodical crystalline potential in solid-state crystals determines their properties for the conduction of electrons, the periodical structuring of photonic crystals leads to envisioning the possibility of achieving a control of the photon flux in dielectric and metallic materials.

The use of photonic crystals as a cage for storing, filtering or guiding light at the wavelength scale thus paves the way to the realisation of optical and optoelectronic devices with ultimate properties and dimensions. This should contribute toward meeting the demands for a greater miniaturisation that the processing of an ever increasing number of data requires.

Photonic Crystals intends to provide students and researchers from different fields with the theoretical background needed for modelling photonic crystals and their optical properties, while at the same time presenting the large variety of devices, from optics to microwaves, where photonic crystals have found applications. As such, it aims at building bridges between optics, electromagnetism and solid-state physics.

This book was written by six specialists of nanophotonics, and was coordinated by Jean-Michel Lourtioz, head of the Institut d'Electronique Fondamentale in Orsay and coordinator of the French Research Network in Nanophotonics."