Communication modes in vector diffraction
2010 (English)In: Optik (Stuttgart), ISSN 0030-4026, Vol. 121, no 22, 2087-2093 p.Article in journal (Refereed) Published
The communication modes, which mathematically correspond to singular value decomposition, have proven a useful concept in optical scalar-field diffraction, with applications in resolution studies, image synthesis, and wave propagation. For optical near-field geometries the communication modes have to be extended to electromagnetic field accounting for the polarization properties. In this paper we present the vector-valued communication modes method based on the rigorous electric-field diffraction integral. As a special case the transverse-electric scalar field modes are obtained. The intensity and polarization properties of the leading electromagnetic communication modes in near-field arrangements with rectangular apertures are discussed in terms of the Stokes parameters. For small separations between the transmitting and receiving apertures the fundamental mode possesses a ring-shaped hollow structure. The polarization properties of the near-field modes show features on spatial scales smaller than the wavelength of light. The system symmetries lead to degenerate communication modes.
Place, publisher, year, edition, pages
2010. Vol. 121, no 22, 2087-2093 p.
Wave optics, Diffraction, Propagation, Optical information, Near fields
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-30252DOI: 10.1016/j.ijleo.2009.07.016ISI: 000285530000017ScopusID: 2-s2.0-78049329657OAI: oai:DiVA.org:kth-30252DiVA: diva2:399406
FunderSwedish Research Council
QC 201102222011-02-222011-02-212012-03-28Bibliographically approved