Please use this identifier to cite or link to this item: https://doi.org/10.1364/OL.38.001182
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dc.titleSingular diffraction-free surface plasmon beams generated by overlapping phase-shifted sources
dc.contributor.authorWei, S.
dc.contributor.authorLin, J.
dc.contributor.authorWang, Q.
dc.contributor.authorYuan, G.
dc.contributor.authorDu, L.
dc.contributor.authorWang, R.
dc.contributor.authorXu, L.
dc.contributor.authorHong, M.
dc.contributor.authorMin, C.
dc.contributor.authorYuan, X.
dc.date.accessioned2014-10-07T04:36:26Z
dc.date.available2014-10-07T04:36:26Z
dc.date.issued2013-04-01
dc.identifier.citationWei, S., Lin, J., Wang, Q., Yuan, G., Du, L., Wang, R., Xu, L., Hong, M., Min, C., Yuan, X. (2013-04-01). Singular diffraction-free surface plasmon beams generated by overlapping phase-shifted sources. Optics Letters 38 (7) : 1182-1184. ScholarBank@NUS Repository. https://doi.org/10.1364/OL.38.001182
dc.identifier.issn01469592
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/83029
dc.description.abstractWe propose and experimentally demonstrate the singular surface plasmon beam that presents a dark channel generated by a point dislocation and a long diffraction-free propagation distance up to 70λsp. The singular surface beam is the result of the interference of two surface plasmon polariton (SPP) plane waves, which are launched by two coupling gratings with lateral displacement. An aperture-type near-field scanning optical microscope is used to map the intensity distribution of the singular SPP waves. The propagating point dislocation embedded in the beam is shown by full-wave calculations and is later verified by near-field interference in the experiment. © 2013 Optical Society of America.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1364/OL.38.001182
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1364/OL.38.001182
dc.description.sourcetitleOptics Letters
dc.description.volume38
dc.description.issue7
dc.description.page1182-1184
dc.description.codenOPLED
dc.identifier.isiut000316946600059
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