Spatial coherence effects in light scattering from metallic nanocylinders

Journal of the Optical Society of America A: Optics and Image Science, and Vision

Volumn 23, Issue 6, 2006, Pages 1349-1358

  Lindberg, Jari ^a   Setälä, Tero ^a   Kaivola, Matti ^a   Friberg, Ari T ^b  

^a AALTO UNIVERSITY   (Finland)

^b ROYAL INSTITUTE OF TECHNOLOGY   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

COHERENT LIGHT; INTEGRAL EQUATIONS; LIGHT POLARIZATION; SURFACE PLASMON RESONANCE;

BOUNDARY-INTEGRAL METHOD; METALLIC NANOCYLINDERS; OPTICAL NEAR FIELD; SPATIAL COHERENCE EFFECTS;

LIGHT SCATTERING;

EID: 33745742782     PISSN: 10847529     EISSN: None     Source Type: Journal    
DOI: 10.1364/JOSAA.23.001349     Document Type: Article

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28. It is of interest to note that, unlike in the traditional description of the partial polarization of a plane wave, the electric and magnetic vectors in the present TM-polarized electromagnetic case behave differently. More specifically, since the magnetic field has only a single component Hz, one intuitively would characterize the magnetic field as fully polarized. Indeed, the magnetic cross-spectral density tensor W(h) at any point r contains only the element Wzz(h), and calculation of the degree of polarization for the magnetic field from Eq. (12), with W(e) replaced by W(h), readily gives P3(h) = 1. The electric field vector, on the other hand, has both x and y components, and its cross-spectral density tensor at every point is a 2 × 2 matrix consisting of Wxx(e), Wxy(e), Wyx(e), and Wyy(e). For an electric field of this form, it has been shown 20 that the 3D degree of polarization takes on values 1/2 ≤ P3(e) ≤ 1.