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Growing bandwidth demands are driving the search for increased network capacity leading to the exploration of new wavelength ranges for future communication systems. Therefore, we consider two technologies that offer increased transmission bandwidths by virtue of their high carrier frequencies, namely optical wireless and millimeter-wave transmission. After highlighting the relevant electromagnetic (EM) spectrum region, we briefly describe the applications and properties of each approach coupled with a short history of their development. This is followed by a performance comparison in two possible 5G links: outdoor point-to-point and indoor hotspots. We find that in both cases, there are regions where optical wireless communications (OWC) are better, but others where millimeter waves are to be preferred. Specifically, the former outperforms the latter over distances up to approximately 50 meters outdoors and a 10-meter hotspot radius indoors.

Optical engineering.

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"This book brings together experts in the field who present material on a number of important and growing topics including lighting, displays, solar concentrators. The first chapter provides an overview of the field of nonimagin and illumination optics. Included in this chapter are terminology, units, definitions, and descriptions of the optical components used in illumination systems. The next two chapters provide material within the theoretical domain, including etendue, etendue squeezing, and the skew invariant. The remaining chapters focus on growing applications. This entire field of nonimaging optics is an evolving field, and the editor plans to update the technological progress every two to three years. The editor, John Koshel, is one of the most prominent leading experts in this field, and he is the right expert to perform the task"-- "Provides a wide number of topics so that practicing engineers and scientist can expand their knowledge into other subfields within nonimaging and illumination optics"--

Optical engineering. --- Lighting.

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The book is designed to serve as a textbook for courses offered to upper-undergraduate students enrolled in physics. The first edition of this book was published in 2014. As there is a demand for the next edition, it is quite natural to take note of the several advances that have occurred in the subject over the past five years and to decide which of these are appropriate for inclusion at the textbook level, given the fundamental nature and the significance of the subject area. This is the prime motivation for bringing out a revised second edition. Among the newer mechanisms and materials, the book introduces the super-continuum generation, which arises from an excellent interplay of the various mechanisms of optical nonlinearity. The topics covered in this book are quantum mechanics of nonlinear interaction of matter and radiation, formalism and phenomenology of nonlinear wave mixing processes, optical phase conjugation and applications, self-focusing and self-phase modulation and their role in pulse modification, nonlinear absorption mechanisms, and optical limiting applications, photonic switching and bi-stability, and physical mechanisms leading to a nonlinear response in a variety of materials. This book has emerged from an attempt to address the requirement of presenting the subject at the college level. This textbook includes rigorous features such as the elucidation of relevant basic principles of physics; a clear exposition of the ideas involved at an appropriate level; coverage of the physical mechanisms of non-linearity; updates on physical mechanisms and emerging photonic materials and emphasis on the experimental study of nonlinear interactions. The detailed coverage and pedagogical tools make this an ideal textbook for students and researchers enrolled in physics and related courses.

Statistical physics. --- Microwaves. --- Optical engineering.

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Visual acuity --- Night vision --- Optical engineering. --- Research.

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Der Klassiker der "Theoretischen Elektrotechnik" wurde für die vorliegende 16. Auflage vollständig neu bearbeitet. Der Hauptteil des Buches befasst sich mit der Theorie und einführenden Anwendungen elektromagnetischer Felder. Es gibt eine klare Gliederung der Näherungstheorien: Theorie elektrischer Netzwerke, Elektrostatik, elektrisches Strömungsfeld, stationäres Magnetfeld, quasi-stationäres Feld, volle Maxwellsche Gleichungen. In der Neuauflage geben die Autoren eine neuartige Begründung des feldtheoretischen Ansatzes bei der physikalischen Modellbildung und der Theorie quasistationärer Felder. Auch die Grundlagen der Theorie elektrischer Netzwerke und der Theorie der Übertragungsleitungen wurden auf den neusten wissenschaftlichen Stand gebracht. In den Beispielen und Anwendungsabschnitten wird die Brauchbarkeit der abgehandelten Methoden anhand klassischer und auch moderner Beispiele demonstriert. Besonderen Wert haben die Autoren darauf gelegt, den Küpfmüllerschen Stil beizubehalten, der das Buch zu einem Bestseller gemacht hat.

Electrical engineering. --- Optics. --- Electrodynamics. --- Microwaves. --- Optical engineering. --- Electrical Engineering. --- Classical Electrodynamics. --- Microwaves, RF and Optical Engineering.