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dc.contributor.authorStafeev, S.S.
dc.contributor.authorO'Faolain, Liam
dc.contributor.authorKotlyar, V.V.
dc.contributor.authorNalimov, A.G.
dc.date.accessioned2016-01-05T10:10:13Z
dc.date.available2016-01-05T10:10:13Z
dc.date.issued2015-05-10
dc.identifier.citationStafeev , S S , O'Faolain , L , Kotlyar , V V & Nalimov , A G 2015 , ' Tight focus of light using micropolarizer and microlens ' , Applied Optics , vol. 54 , no. 14 , pp. 4388-4394 . https://doi.org/10.1364/AO.54.004388en
dc.identifier.issn1559-128X
dc.identifier.otherPURE: 228459050
dc.identifier.otherPURE UUID: d124386f-1dd8-45eb-996d-2e3fe366c6c8
dc.identifier.otherScopus: 84942366669
dc.identifier.otherWOS: 000354191500013
dc.identifier.urihttps://hdl.handle.net/10023/7960
dc.descriptionFunding: European Research Council (ERC) (337508); Ministry of Education and Science of the Russian Federation (MK-4816.2014.2, NSh-3970.2014.9); Russian Foundation for Basic Research (14-07-31092, 14-07-97039, 14-29-07133, 15-07-01174).en
dc.description.abstractUsing a binary microlens of diameter 14 μm and focal length 532 nm (NA = 0.997) in resist, we focus a 633 nm laser beam into a near-circular focal spot with dimensions (0.35 ± 0.02)λ and (0.38 ± 0.02)λ (λ is incident wavelength) at full width half-maximum intensity. The area of the focal spot is 0.105λ2. The incident light is a mixture of linearly and radially polarized beams generated by reflecting a linearly polarized Gaussian beam at a 100 μm 100 μm four-sector subwavelength diffractive optical microelement with a gold coating. The focusing of a linearly polarized laser beam (the other conditions being the same) is found to produce an elliptical focal spot measuring (0.40 ± 0.02)λ and (0.50 ± 0.02)λ. To our knowledge, this is the first implementation of subwavelength focusing of light using a pair of micro-optic elements (a binary microlens and a micropolarizer).
dc.format.extent7
dc.language.isoeng
dc.relation.ispartofApplied Opticsen
dc.rights© 2015 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1364/AO.54.004388.en
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleTight focus of light using micropolarizer and microlensen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Research Councilen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Microphotonics and Photonic Crystals Groupen
dc.identifier.doihttps://doi.org/10.1364/AO.54.004388
dc.description.statusPeer revieweden
dc.identifier.grantnumber337508 337508en


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