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Light-Matter InteractionPhysics and Engineering at the Nanoscale, Second Edition$
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John Weiner and Frederico Nunes

Print publication date: 2017

Print ISBN-13: 9780198796664

Published to Oxford Scholarship Online: March 2017

DOI: 10.1093/acprof:oso/9780198796664.001.0001

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Physical Optics of Plane Waves

Physical Optics of Plane Waves

(p.48) 3 Physical Optics of Plane Waves
Light-Matter Interaction

John Weiner

Frederico Nunes

Oxford University Press

Chapter 3 introduces the phasor representation, as well as the first mention of the expressions for energy density and energy flux. These key notions recur continually throughout the book in various contexts. Transmission through lossless dielectric materials is first treated, followed by energy storage and transmission through conductive, lossy materials in the low frequency limit. The second half of the chapter treats reflections and transmission, total internal reflection, real material interfaces, and plane-wave behaviours in a lossy, conductive medium at high frequency. The classical laws of reflection and refraction angles at interfaces are introduced as well as the Fresnel theory of amplitude, polarisation, and phase.

Keywords:   plane wave, phasor, energy density, energy flux, reflection, transmission, Fresnel

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