Photonic crystals for the visible spectrum by holographic lithography

We describe a general and flexible technique for the fabrication of three-dimensional photonic crystals that is particularly well adapted to the production of structures with the sub-micron periodicity required for applications in the visible optical spectrum. Three-dimensional microstructure is gen...

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Main Authors: Sharp, D, Campbell, M, Dedman, E, Harrison, M, Denning, R, Turberfield, A
Format: Journal article
Language:English
Published: 2002
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author Sharp, D
Campbell, M
Dedman, E
Harrison, M
Denning, R
Turberfield, A
author_facet Sharp, D
Campbell, M
Dedman, E
Harrison, M
Denning, R
Turberfield, A
author_sort Sharp, D
collection OXFORD
description We describe a general and flexible technique for the fabrication of three-dimensional photonic crystals that is particularly well adapted to the production of structures with the sub-micron periodicity required for applications in the visible optical spectrum. Three-dimensional microstructure is generated by using a four-beam laser interference pattern to expose a thick layer of photoresist. Exposed areas are rendered insoluble; unexposed areas are dissolved away leaving a three-dimensional photonic crystal formed of cross-linked polymer with air-filled voids. The polymeric structure may be used as a template for the production of photonic crystals with higher refractive index contrast. Photonic crystals made of polymer and of TiO 2 have been characterized by scanning electron microscopy and by optical diffraction measurements.
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spelling oxford-uuid:fb16d6a2-ecf0-4c5a-81a4-7410d820d1982022-03-27T13:11:16ZPhotonic crystals for the visible spectrum by holographic lithographyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fb16d6a2-ecf0-4c5a-81a4-7410d820d198EnglishSymplectic Elements at Oxford2002Sharp, DCampbell, MDedman, EHarrison, MDenning, RTurberfield, AWe describe a general and flexible technique for the fabrication of three-dimensional photonic crystals that is particularly well adapted to the production of structures with the sub-micron periodicity required for applications in the visible optical spectrum. Three-dimensional microstructure is generated by using a four-beam laser interference pattern to expose a thick layer of photoresist. Exposed areas are rendered insoluble; unexposed areas are dissolved away leaving a three-dimensional photonic crystal formed of cross-linked polymer with air-filled voids. The polymeric structure may be used as a template for the production of photonic crystals with higher refractive index contrast. Photonic crystals made of polymer and of TiO 2 have been characterized by scanning electron microscopy and by optical diffraction measurements.
spellingShingle Sharp, D
Campbell, M
Dedman, E
Harrison, M
Denning, R
Turberfield, A
Photonic crystals for the visible spectrum by holographic lithography
title Photonic crystals for the visible spectrum by holographic lithography
title_full Photonic crystals for the visible spectrum by holographic lithography
title_fullStr Photonic crystals for the visible spectrum by holographic lithography
title_full_unstemmed Photonic crystals for the visible spectrum by holographic lithography
title_short Photonic crystals for the visible spectrum by holographic lithography
title_sort photonic crystals for the visible spectrum by holographic lithography
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AT campbellm photoniccrystalsforthevisiblespectrumbyholographiclithography
AT dedmane photoniccrystalsforthevisiblespectrumbyholographiclithography
AT harrisonm photoniccrystalsforthevisiblespectrumbyholographiclithography
AT denningr photoniccrystalsforthevisiblespectrumbyholographiclithography
AT turberfielda photoniccrystalsforthevisiblespectrumbyholographiclithography