Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications

<p>Significant improvement in using plasmonic nanostructures for practical colour filtering and multispectral imaging applications is achieved by exploiting the coupling of surface plasmon polaritons with dielectric optical cavity resonances within a hexagonal array of subwavelength holes in a...

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Главный автор: Pinton, N
Другие авторы: Collins, S
Формат: Диссертация
Язык:English
Опубликовано: 2020
Предметы:
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author Pinton, N
author2 Collins, S
author_facet Collins, S
Pinton, N
author_sort Pinton, N
collection OXFORD
description <p>Significant improvement in using plasmonic nanostructures for practical colour filtering and multispectral imaging applications is achieved by exploiting the coupling of surface plasmon polaritons with dielectric optical cavity resonances within a hexagonal array of subwavelength holes in a thin CMOS-compatible metal-insulator-metal (MIM) stack. This architecture overcomes the limitations of all previously reported plasmonic colour filters, namely poor transmission and broad band-pass characteristic, effectively providing a compact approach to selectively filter light. The physical insights established from the electromagnetic near-field patterns and parametric simulation studies are used to accurately tailor the optical properties of the filters. </p> <p>Measured transmission efficiencies up to 60% and full-width at half-maximum between 45 nm and 55 nm along the entire visible spectrum are achieved - an impressive and unique combination of features that has never been reported before. The non-ideality of the fabrication at the nanoscale is addressed, the issues encountered highlighted and alternative solutions proposed and verified, demonstrating that the working principle of the MIM structure can be successfully extended to other materials and structural parameters.</p>
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spelling oxford-uuid:91b3cf0c-a94a-48dd-81b9-b52fe3f419802022-03-26T23:20:26ZMetal-insulator-metal plasmonic colour filters for CMOS image sensor applicationsThesishttp://purl.org/coar/resource_type/c_db06uuid:91b3cf0c-a94a-48dd-81b9-b52fe3f41980NanotechnologySurface plasmon resonanceNanophotonicsColor filter arraysPlasmonicsEnglishHyrax Deposit2020Pinton, NCollins, S<p>Significant improvement in using plasmonic nanostructures for practical colour filtering and multispectral imaging applications is achieved by exploiting the coupling of surface plasmon polaritons with dielectric optical cavity resonances within a hexagonal array of subwavelength holes in a thin CMOS-compatible metal-insulator-metal (MIM) stack. This architecture overcomes the limitations of all previously reported plasmonic colour filters, namely poor transmission and broad band-pass characteristic, effectively providing a compact approach to selectively filter light. The physical insights established from the electromagnetic near-field patterns and parametric simulation studies are used to accurately tailor the optical properties of the filters. </p> <p>Measured transmission efficiencies up to 60% and full-width at half-maximum between 45 nm and 55 nm along the entire visible spectrum are achieved - an impressive and unique combination of features that has never been reported before. The non-ideality of the fabrication at the nanoscale is addressed, the issues encountered highlighted and alternative solutions proposed and verified, demonstrating that the working principle of the MIM structure can be successfully extended to other materials and structural parameters.</p>
spellingShingle Nanotechnology
Surface plasmon resonance
Nanophotonics
Color filter arrays
Plasmonics
Pinton, N
Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications
title Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications
title_full Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications
title_fullStr Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications
title_full_unstemmed Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications
title_short Metal-insulator-metal plasmonic colour filters for CMOS image sensor applications
title_sort metal insulator metal plasmonic colour filters for cmos image sensor applications
topic Nanotechnology
Surface plasmon resonance
Nanophotonics
Color filter arrays
Plasmonics
work_keys_str_mv AT pintonn metalinsulatormetalplasmoniccolourfiltersforcmosimagesensorapplications