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Theory of Electromagnetic Beams [electronic resource] / by John Lekner, John Lekner.

By: Lekner, John [author.].
Contributor(s): Lekner, John [author.] | SpringerLink (Online service).
Material type: materialTypeLabelBookSeries: Synthesis Lectures on Engineering, Science, and Technology: Publisher: Cham : Springer International Publishing : Imprint: Springer, 2020Edition: 1st ed. 2020.Description: XVII, 165 p. online resource.Content type: text Media type: computer Carrier type: online resourceISBN: 9783031020827.Subject(s): Engineering design | Materials | Professional education | Vocational education | Engineering Design | Materials Engineering | Professional and Vocational EducationAdditional physical formats: Printed edition:: No title; Printed edition:: No title; Printed edition:: No titleDDC classification: 620.0042 Online resources: Click here to access online
Contents:
Preface -- Acknowledgments -- Fundamentals -- Beam-Like Solutions of the Helmholtz Equation -- Electromagnetic Beams -- Polarization -- Chirality -- Comparison of Electromagnetic Beams -- Sound Beams and Particle Beams -- Measures of Focal Extent -- Author's Biography.
In: Springer Nature eBookSummary: The theory of electromagnetic beams is presented in a simple and physical way, with all necessary mathematics explained in the text. The topics covered are in free-space classical electrodynamics, but contact is made with quantum theory in proofs that causal beams of various kinds can be viewed as superpositions of photons. This follows from explicit expressions for the energy, momentum and angular momentum per unit length for each type of beam. The properties of beams in the focal region, of special experimental and theoretical interest, are discussed in detail. There are eight chapters: on Fundamentals, Beam-like solutions of the Helmholtz equation, Electromagnetic beams, Polarization, Chirality, Comparison of electromagnetic beams, a chapter on Sound beams and particle beams (to show the similarities to and differences from the vector electromagnetic beams), and a final chapter on Measures of focal extent. Ten Appendices cover mathematical or associated physical topics.
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Preface -- Acknowledgments -- Fundamentals -- Beam-Like Solutions of the Helmholtz Equation -- Electromagnetic Beams -- Polarization -- Chirality -- Comparison of Electromagnetic Beams -- Sound Beams and Particle Beams -- Measures of Focal Extent -- Author's Biography.

The theory of electromagnetic beams is presented in a simple and physical way, with all necessary mathematics explained in the text. The topics covered are in free-space classical electrodynamics, but contact is made with quantum theory in proofs that causal beams of various kinds can be viewed as superpositions of photons. This follows from explicit expressions for the energy, momentum and angular momentum per unit length for each type of beam. The properties of beams in the focal region, of special experimental and theoretical interest, are discussed in detail. There are eight chapters: on Fundamentals, Beam-like solutions of the Helmholtz equation, Electromagnetic beams, Polarization, Chirality, Comparison of electromagnetic beams, a chapter on Sound beams and particle beams (to show the similarities to and differences from the vector electromagnetic beams), and a final chapter on Measures of focal extent. Ten Appendices cover mathematical or associated physical topics.

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