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Nonlinear optics is a topic of much current interest that exhibits
a great diversity. Some publications on the subject are clearly
physics, while others reveal an engineering bias; some appear to be
accessible to the chemist, while others may appeal to biological
understanding. Yet all purport to be non linear optics so where is
the underlying unity? The answer is that the unity lies in the
phenomena and the devices that exploit them, while the diversity
lies in the materials used to express the phenomena. This book is
an attempt to show this unity in diversity by bringing together
contributions covering an unusually wide range of materials,
preceded by accounts of the main phenomena and important devices.
Because ofthe diversity, individual materials are treated in
separate chapters by different expert authors, while as editors we
have shouldered the task of providing the unifying initial
chapters. Most main classes of nonlinear optical solids are
treated: semiconductors, glasses, ferroelectrics, molecular
crystals, polymers, and Langmuir-Blodgett films. (However, liquid
crystals are not covered. ) Each class of material is enough for a
monograph in itself, and this book is designed to be an
introduction suitable for graduate students and those in industry
entering the area of nonlinear optics. It is also suitable in parts
for final-year undergraduates on project work. It aims to provide a
bridge between traditional fields of expertise and the broader
field of nonlinear optics."
Nonlinear optics is attracting attention because of its
applications in telecommunications and its possibilities for
optical computing. Optoelectronics has been singled out by many as
being of considerable strategic importance. Optical fibre
communications shows that optics is already a method of choice;
nonlinear optics offers further improvements in efficiency and
versatility. Textbooks on nonlinear optics are readily available,
concentrating on phenomena and devices rather than on the
materials. Materials for nonlinear optics have developed
considerably, with novel semiconductor structures and organics
attracting much attention. These too are treated in a variety of
books, at a research level. To take advantage of these newer
materials, those who use nonlinear optics may need a source of
information on the materials available and their special
characteristics. At the same time, materials specialists entering
the field of nonlinear optics may need a source of information on
the general features of nonlinear optics. Nonlinear optics also now
forms part of a number of degree and Masters level programmes. This
book is written as an overview of the subject for users of these
materials, graduate level courses and those entering research in
this area. Chapters cover individual classes of materials and try
to provide an authoritative but approachable summary of the
characteristics of each class, with emphasis on the advantages
offered for applications in nonlinear optics. To ensure that the
book is accessible to those not conversant with nonlinear optics,
introductory chapters outline the principle nonlinear optical
phenomena and how these are exploited in device configurations.
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