Contribution of evanescent incident waves to the scattered far field

Zhisong Tong; Olga Korotkova

doi:10.1103/PhysRevA.85.043802

Contribution of evanescent incident waves to the scattered far field

Zhisong Tong, Olga Korotkova

Physics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

It is a common perception that evanescent waves do not contribute to the far field. On scattering, however, the evanescent incident field may contribute to both the homogeneous and the evanescent scattered waves. With the method of angular spectrum representation of plane waves, we calculate the ratio between the contributions of the evanescent and homogeneous incident waves to the scattered far field for a δ-correlated scattering medium. The result may be applicable to the scattered near field of the scatterer as well as to the intermediate and far zones.

Original language	English (US)
Article number	043802
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.85.043802
State	Published - Apr 3 2012

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "It is a common perception that evanescent waves do not contribute to the far field. On scattering, however, the evanescent incident field may contribute to both the homogeneous and the evanescent scattered waves. With the method of angular spectrum representation of plane waves, we calculate the ratio between the contributions of the evanescent and homogeneous incident waves to the scattered far field for a δ-correlated scattering medium. The result may be applicable to the scattered near field of the scatterer as well as to the intermediate and far zones.",

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AB - It is a common perception that evanescent waves do not contribute to the far field. On scattering, however, the evanescent incident field may contribute to both the homogeneous and the evanescent scattered waves. With the method of angular spectrum representation of plane waves, we calculate the ratio between the contributions of the evanescent and homogeneous incident waves to the scattered far field for a δ-correlated scattering medium. The result may be applicable to the scattered near field of the scatterer as well as to the intermediate and far zones.

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Contribution of evanescent incident waves to the scattered far field

Abstract

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