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Generation of nearly 3D-unpolarized evanescent optical near fields using total internal reflection
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
2016 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 41, no 13, 2942-2945 p.Article in journal (Refereed) Published
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Abstract [en]

We analyze the time-domain partial polarization of optical fields composed of two evanescent waves created in total internal reflection by random electromagnetic beams with orthogonal planes of incidence. We show that such a two-beam configuration enables to generate nearly unpolarized, genuine three-component (3D) near fields. This result complements earlier studies on spectral polarization, which state that at least three symmetrically propagating beams are required to produce a 3D-unpolarized near field. The degree of polarization of the near field can be controlled by adjusting the polarization states and mutual correlation of the incident beams.

Place, publisher, year, edition, pages
2016. Vol. 41, no 13, 2942-2945 p.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-190503DOI: 10.1364/OL.41.002942ISI: 000379667800012PubMedID: 27367071Scopus ID: 2-s2.0-84978859535OAI: oai:DiVA.org:kth-190503DiVA: diva2:954031
Note

QC 20160819

Available from: 2016-08-19 Created: 2016-08-12 Last updated: 2016-08-19Bibliographically approved

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