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Article: Metasurface Enabled Wide-Angle Fourier Lens

TitleMetasurface Enabled Wide-Angle Fourier Lens
Authors
KeywordsFourier lenses
metasurfaces
spatial spectra
Issue Date2018
Citation
Advanced Materials, 2018, v. 30, n. 23, article no. 1706368 How to Cite?
Abstract© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Fourier optics, the principle of using Fourier transformation to understand the functionalities of optical elements, lies at the heart of modern optics, and it has been widely applied to optical information processing, imaging, holography, etc. While a simple thin lens is capable of resolving Fourier components of an arbitrary optical wavefront, its operation is limited to near normal light incidence, i.e., the paraxial approximation, which puts a severe constraint on the resolvable Fourier domain. As a result, high-order Fourier components are lost, resulting in extinction of high-resolution information of an image. Other high numerical aperture Fourier lenses usually suffer from the bulky size and costly designs. Here, a dielectric metasurface consisting of high-aspect-ratio silicon waveguide array is demonstrated experimentally, which is capable of performing 1D Fourier transform for a large incident angle range and a broad operating bandwidth. Thus, the device significantly expands the operational Fourier space, benefitting from the large numerical aperture and negligible angular dispersion at large incident angles. The Fourier metasurface will not only facilitate efficient manipulation of spatial spectrum of free-space optical wavefront, but also be readily integrated into micro-optical platforms due to its compact size.
Persistent Identifierhttp://hdl.handle.net/10722/295087
ISSN
2020 Impact Factor: 30.849
2020 SCImago Journal Rankings: 10.707
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiu, Wenwei-
dc.contributor.authorLi, Zhancheng-
dc.contributor.authorCheng, Hua-
dc.contributor.authorTang, Chengchun-
dc.contributor.authorLi, Junjie-
dc.contributor.authorZhang, Shuang-
dc.contributor.authorChen, Shuqi-
dc.contributor.authorTian, Jianguo-
dc.date.accessioned2021-01-05T04:59:02Z-
dc.date.available2021-01-05T04:59:02Z-
dc.date.issued2018-
dc.identifier.citationAdvanced Materials, 2018, v. 30, n. 23, article no. 1706368-
dc.identifier.issn0935-9648-
dc.identifier.urihttp://hdl.handle.net/10722/295087-
dc.description.abstract© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Fourier optics, the principle of using Fourier transformation to understand the functionalities of optical elements, lies at the heart of modern optics, and it has been widely applied to optical information processing, imaging, holography, etc. While a simple thin lens is capable of resolving Fourier components of an arbitrary optical wavefront, its operation is limited to near normal light incidence, i.e., the paraxial approximation, which puts a severe constraint on the resolvable Fourier domain. As a result, high-order Fourier components are lost, resulting in extinction of high-resolution information of an image. Other high numerical aperture Fourier lenses usually suffer from the bulky size and costly designs. Here, a dielectric metasurface consisting of high-aspect-ratio silicon waveguide array is demonstrated experimentally, which is capable of performing 1D Fourier transform for a large incident angle range and a broad operating bandwidth. Thus, the device significantly expands the operational Fourier space, benefitting from the large numerical aperture and negligible angular dispersion at large incident angles. The Fourier metasurface will not only facilitate efficient manipulation of spatial spectrum of free-space optical wavefront, but also be readily integrated into micro-optical platforms due to its compact size.-
dc.languageeng-
dc.relation.ispartofAdvanced Materials-
dc.subjectFourier lenses-
dc.subjectmetasurfaces-
dc.subjectspatial spectra-
dc.titleMetasurface Enabled Wide-Angle Fourier Lens-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adma.201706368-
dc.identifier.pmid29672964-
dc.identifier.scopuseid_2-s2.0-85047833599-
dc.identifier.volume30-
dc.identifier.issue23-
dc.identifier.spagearticle no. 1706368-
dc.identifier.epagearticle no. 1706368-
dc.identifier.eissn1521-4095-
dc.identifier.isiWOS:000434036000003-
dc.identifier.issnl0935-9648-

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