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dc.contributor.authorScullion, M.G.
dc.contributor.authorDi Falco, A.
dc.contributor.authorKrauss, T.F.
dc.date.accessioned2014-09-05T14:01:01Z
dc.date.available2014-09-05T14:01:01Z
dc.date.issued2014-08-01
dc.identifier.citationScullion , M G , Di Falco , A & Krauss , T F 2014 , ' Contra-directional coupling into slotted photonic crystals for spectrometric applications ' , Optics Letters , vol. 39 , no. 15 , pp. 4345-4348 . https://doi.org/10.1364/OL.39.004345en
dc.identifier.issn0146-9592
dc.identifier.otherPURE: 145763555
dc.identifier.otherPURE UUID: d044a23b-02e9-42fb-bcd0-fedf88f854fb
dc.identifier.otherScopus: 84904962393
dc.identifier.otherWOS: 000339878900016
dc.identifier.otherORCID: /0000-0002-7338-8785/work/57821746
dc.identifier.urihttps://hdl.handle.net/10023/5360
dc.description.abstractWe propose and demonstrate the concept of a contra-directional coupler between a W1 and a slotted photonic crystal waveguide. The bandwidth and operating wavelength of such a coupler can be controlled via its geometrical parameters, and power transfer is not periodic unlike in the more familiar codirectional case. Light of specific wavelengths can be extracted from the W1 mode into air slot modes using this design, with W1/slot coupling efficiencies of up to 99 ± 1%, and waveguide extracted coupling efficiencies of up to 51 ± 12% demonstrated experimentally. Combining several of these couplers in series, we demonstrate the spectral filtering functionality on-chip. The device therefore combines the well-known sensing function of the slotted waveguide geometry with the spectrometer function, thus uniting two essential biosensor functions in a monolithic device.
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofOptics Lettersen
dc.rights© 2014 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-39-15-4345. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.en
dc.subjectQC Physicsen
dc.subject.lccQCen
dc.titleContra-directional coupling into slotted photonic crystals for spectrometric applicationsen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1364/OL.39.004345
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/I004602/1en
dc.identifier.grantnumberEP/J01771X/1en
dc.identifier.grantnumberEP/J004200/1en
dc.identifier.grantnumberEP/F020589/1en


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