This is the first comprehensive textbook on the optical properties of
photonic crystals. It deals not only with the properties of the
radiation modes inside the crystals but also with their peculiar optical
response to external fields. A general theory of linear and nonlinear
optical response is developed in a clear and detailed fashion using the
Green's function method. The symmetry of the eigenmodes is treated
systematically using group theory to show how it affects the optical
properties of photonic crystals. Important recent developments such as
the enhancement of stimulated emission, second harmonic generation,
quadrature-phase squeezing, and low-threshold lasing are also treated in
detail and made understandable. Numerical methods are also emphasized.
Thus this book provides both an introduction for graduate and
undergraduate students and also key information for researchers in this
field. The second edition features a new chapter on superfluorescence
and updated text and references throughout.