The title of this book, Plasmonics: Principles and Applications, encompasses theory, technical issues, and practical applications which are of interest for diverse classes of the plasmonics. The book is a collection of the contemporary researches and developments in the area of plasmonics technology. It consists of 21 chapters that focus on interesting topics of modeling and computational methods, plasmonic structures for light transmission, focusing, and guiding, emerging concepts, and applications....
In the past decades a renewed interest has been seen around optical wireless communications,
commonly known as free-space optics (FSO), because of the ever growing demand for
high-data-rate data transmission as to a large extent current applications, such as the
high-deﬁnition (HD) contents and cloud computing, require great amount of data to be
transmitted, hence, demanding more transmission bandwidth. Nowadays, the last mile
problem continuous to be the bottle neck in the global communication network....
A communication system transmits information from one place to another, whether separated by a few kilometers or by transoceanic distances. Information is often carried by an electromagnetic carrier wave whose frequency can vary from a few megahertz to several hundred terahertz. Optical communication systems use high carrier frequencies (∼ 100 THz) in the visible or near-infrared region of the electromagnetic spectrum.