Inverse Canonical Energy Flow in Laser Beams

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予約

Inverse Canonical Energy Flow in Laser Beams

Kotlyar, Victor/ Kovalev, Alexey/ Stafeev, Sergey

ウェブストア価格 ¥44,985（本体¥40,896）
Springer, Berlin; Springer（2026/09発売）
外貨定価 EUR 160.49
ポイント 408pt

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製本 Hardcover:ハードカバー版
商品コード 9783032272881

Full Description

This book examines two-dimensional light fields (sinc-beams, Airy beams, Hankel beams, and Bessel beams with fractional order), in which the reverse energy flow is formed near isolated intensity nulls. That is, near those points where the energy (power) density is zero. A reverse canonical energy flow has also been found in three-dimensional nonparaxial vector light fields with linear, azimuthal, and hybrid polarizations. The reverse energy flow is formed in the near field, in the presence of evanescent waves, as well as in the region of a sharp focus, where there is no evanescent wave. Interestingly, the reverse energy flow takes place in the near field of a Hertzian linear point dipole. This book is devoted to an interesting and largely unexplored effect in optics: the reverse energy flow of light. It examines two-dimensional and three-dimensional nonparaxial vector light fields, in which a reverse canonical energy flow is formed in certain spatial regions. The propagation of coherent monochromatic light is described in several ways: by decomposition into a plane-wave spectrum and by Rayleigh-Sommerfeld vector integrals. Projections of the electric vector in a sharp focus are described using Richards-Wolf theory and Debye integrals. The book presents precise analytical expressions for the longitudinal projections of the canonical energy flow vector, which strictly prove the presence of a reverse flow in the light fields under consideration. The book includes the results that the authors obtained in 2024-2025. The book will be of interest to a wide range of scientists, engineers working in the field of optics, photonics, laser physics, opto-information technologies, and optical instrumentation. It can also be useful for bachelors and masters in the specialties applied mathematics and physics, applied mathematics and informatics, optics and graduate students specializing in these areas.