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|Title:||Multipole and plane wave expansions of diverging and converging fields||Authors:||Hoang, T.X.
|Issue Date:||21-Apr-2014||Citation:||Hoang, T.X., Chen, X., Sheppard, C.J.R. (2014-04-21). Multipole and plane wave expansions of diverging and converging fields. Optics Express 22 (8) : 8949-8961. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.22.008949||Abstract:||This paper presents and compares two basis systems, spherical harmonics and plane waves, for studying diverging and converging beams in an optical system. We show a similarity between a converging field and the time reversed field of a radiation field. We present and analyze the differences between the Debye-Wolf diffraction integral and the multipole theory for focusing of polarized light. The Debye-Wolf diffraction integral gives a well-known anomalous behavior on the optical axis and at the edge of the focused beam that can be avoided by using the multipole theory. © 2014 Optical Society of America.||Source Title:||Optics Express||URI:||http://scholarbank.nus.edu.sg/handle/10635/82735||ISSN:||10944087||DOI:||10.1364/OE.22.008949|
|Appears in Collections:||Staff Publications|
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