DC Field | Value | Language |
---|---|---|
dc.contributor.author | Krueger, Neil A. | ko |
dc.contributor.author | Holsteen, Aaron L. | ko |
dc.contributor.author | Kang, Seung-Kyun | ko |
dc.contributor.author | Ocier, Christian R. | ko |
dc.contributor.author | Zhou, Weijun | ko |
dc.contributor.author | Mensing, Glennys | ko |
dc.contributor.author | Rogers, John A. | ko |
dc.contributor.author | Brongersma, Mark L. | ko |
dc.contributor.author | Braun, Paul V. | ko |
dc.date.accessioned | 2017-07-18T05:43:52Z | - |
dc.date.available | 2017-07-18T05:43:52Z | - |
dc.date.created | 2017-07-07 | - |
dc.date.created | 2017-07-07 | - |
dc.date.created | 2017-07-07 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.citation | NANO LETTERS, v.16, no.12, pp.7402 - 7407 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/224803 | - |
dc.description.abstract | The emergence and growth of transformation optics over the past decade has revitalized interest in how a gradient refractive index (GRIN) can be used to control light propagation. Two-dimensional demonstrations with lithographically defined silicon (Si) have displayed the power of GRIN optics and also represent a promising opportunity for integrating compact optical elements within Si photonic integrated circuits. Here, we demonstrate the fabrication of three-dimensional Si-based GRIN micro-optics through the shape-defined formation of porous Si (PSi). Conventional microfabrication creates Si square microcolumns (SMCs) that can be electrochemically etched into PSi elements with nanoscale porosity along the shape-defined etching pathway, which imparts the geometry with structural birefringence. Free-space characterization of the transmitted intensity distribution through a homogeneously etched PSi SMC exhibits polarization splitting behavior resembling that of dielectric metasurfaces that require considerably more laborious fabrication. Coupled birefringence/GRIN effects are studied by way of PSi SMCs etched with a linear (increasing from edge to center) GRIN profile. The transmitted intensity distribution shows polarization-selective focusing behavior with one polarization focused to a diffraction-limited spot and the orthogonal polarization focused into two laterally displaced foci. Optical thickness-based analysis readily predicts the experimentally observed phenomena, which strongly match finite-element electromagnetic simulations. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | LUNEBURG LENS | - |
dc.subject | TRANSFORMATION OPTICS | - |
dc.subject | SUPERLATTICES | - |
dc.subject | DIELECTRICS | - |
dc.subject | LIGHT | - |
dc.subject | CLOAK | - |
dc.title | Porous Silicon Gradient Refractive Index Micro-Optics | - |
dc.type | Article | - |
dc.identifier.wosid | 000389963200014 | - |
dc.identifier.scopusid | 2-s2.0-85006266093 | - |
dc.type.rims | ART | - |
dc.citation.volume | 16 | - |
dc.citation.issue | 12 | - |
dc.citation.beginningpage | 7402 | - |
dc.citation.endingpage | 7407 | - |
dc.citation.publicationname | NANO LETTERS | - |
dc.identifier.doi | 10.1021/acs.nanolett.6b02939 | - |
dc.contributor.localauthor | Kang, Seung-Kyun | - |
dc.contributor.nonIdAuthor | Krueger, Neil A. | - |
dc.contributor.nonIdAuthor | Holsteen, Aaron L. | - |
dc.contributor.nonIdAuthor | Ocier, Christian R. | - |
dc.contributor.nonIdAuthor | Zhou, Weijun | - |
dc.contributor.nonIdAuthor | Mensing, Glennys | - |
dc.contributor.nonIdAuthor | Rogers, John A. | - |
dc.contributor.nonIdAuthor | Brongersma, Mark L. | - |
dc.contributor.nonIdAuthor | Braun, Paul V. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Microlenses | - |
dc.subject.keywordAuthor | transformation optics | - |
dc.subject.keywordAuthor | silicon photonics | - |
dc.subject.keywordAuthor | birefringence | - |
dc.subject.keywordPlus | LUNEBURG LENS | - |
dc.subject.keywordPlus | TRANSFORMATION OPTICS | - |
dc.subject.keywordPlus | SUPERLATTICES | - |
dc.subject.keywordPlus | DIELECTRICS | - |
dc.subject.keywordPlus | LIGHT | - |
dc.subject.keywordPlus | CLOAK | - |
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