The focusing effect of graded index photonic crystals

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buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage171108-1en_US
dc.citation.issueNumber17en_US
dc.citation.spage171108-3en_US
dc.citation.volumeNumber93en_US
dc.contributor.authorKurt, H.en_US
dc.contributor.authorColak, E.en_US
dc.contributor.authorCakmak, O.en_US
dc.contributor.authorCaglayan, H.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2016-02-08T10:07:13Z
dc.date.available2016-02-08T10:07:13Z
dc.date.issued2008en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractWe describe an approach to implement graded index (GRIN) structures using two-dimensional photonic crystals (PCs). The lattice spacing along the transverse direction to propagation is altered and we show, both theoretically and experimentally, that such a spatial perturbation is an effective way to obtain GRIN PC. The response of the structure to spatially wide incident beams is investigated and strong focusing behavior is observed. The large spot size conversion ratio can be attainable and is mainly limited by the finite size of the structure. The designed GRIN PC shows promise for use in optical systems that require compact and powerful focusing elements compared to the traditional bulky lenses.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:07:13Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2008en
dc.identifier.doi10.1063/1.3009965en_US
dc.identifier.eissn1077-3118
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/11693/22971
dc.language.isoEnglishen_US
dc.publisherAIP Publishing LLCen_US
dc.relation.isversionofhttps://doi.org/10.1063/1.3009965en_US
dc.source.titleApplied Physics Lettersen_US
dc.titleThe focusing effect of graded index photonic crystalsen_US
dc.typeArticleen_US

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