This book presents a modern theory of so-called weak spatial dispersion (WSD) in composite media of optically small inclusions without natural magnetism and optical nonlinearity. WSD manifests in two important phenomena called bianisotropy and artificial magnetism, whose microscopic origin is thoroughly studied in this book. The theory of this book is applicable to the natural media with WSD, such as chiral materials. However, emphasis is given to artificial media, too, with the idea to engineer needed electromagnetic properties. The text describes a homogenization model of effectively continuous media with multipole electromagnetic response, taking into account the interface effects. Another model is developed for so-called metamaterials in which artificial magnetism can be a resonant phenomenon and may result in the violation of Maxwell’s boundary conditions and other challenges. The book will hopefully improve the understanding of WSD and help readers to correctly describe and characterize metamaterials.
Table of Contents
General Introduction to Weak Spatial Dispersion
Quasi-Static Averaging of Microscopic Fields and the Concept of Bianisotropy
Multipolar Theory of Weak Spatial Dispersion
Revision of the CMLL Formulas and Boundary Conditions for Thin Composite Layers
Homogenization of Metamaterials with Artificial Magnetism
Constantin Simovski is full professor at Aalto University (former Helsinki University of Technology), Finland. He has also held a position at ITMO University, Russia. Prof. Simovski has worked in both industry and universities in several countries. His current research is focused on new metamaterials for optical sensing and energy harvesting, advanced solar cells, radiative heat transfer and thermophotovoltaics, and homogenization and electromagnetic characterization of bulk metamaterials and metasurfaces.
"The advent of metamaterials in the twenty-first century has shifted the subject of spatial dispersion from an obscure research topic to a major consideration in the characterization of artificial (composite) materials. The physics and engineering communities will benefit greatly from this invaluable resource authored by an internationally recognized expert on spatial dispersion. Undoubtedly, the book will become a classic in its field." Dr. Arthur D. Yaghjian, Electromagnetics Research, Concord, Massachusetts, USA
"This excellent book provides an authoritative and comprehensive exposition of the homogenization of natural composites and metamaterials with weak spatial dispersion, covering many topics not easily found elsewhere. It will be extremely useful for students and experts interested in the physics of artificial magnetism and bianisotropy and an invaluable reference for years to come." Prof. Mário G. Silveirinha, Universidade de Lisboa, Portugal
"Constantin Simovski is one of the most recognized experts in the field of non-local electromagnetic materials, and with this book he makes a gift to the scholars and students approaching the complexity of spatially dispersive artificial materials. He explores the topic from different viewpoints, shedding light on a matter that is typically arduous and difficult to understand. The organization of the book is very well conceived and allows the author to take the readers by the hand and accompany them in the discovery of the intricate and marvelous world of non-local metamaterials." Prof. Filiberto Bilotti, Roma Tre University, Italy