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Design and fabrication of a 3D-structured gold film with nanopores for local electric field enhancement in the pore

Design and fabrication of a 3D-structured gold film with nanopores for local electric field enhancement in the pore
Design and fabrication of a 3D-structured gold film with nanopores for local electric field enhancement in the pore
Three-dimensionally structured gold membrane films with nanopores of defined, periodic geometries are designed and fabricated to provide the spatially localised enhancement of electric fields by manipulation of the plasmons inside nanopores. Square nanopores of different size and orientation relative to the pyramid are considered for films in aqueous and air environments, which allow for control of the position of electric fields within the structure. Designs suitable for use with 780 nm light were created. Here, periodic pyramidal cavities produced by potassium hydroxide etching to the {111} planes of (100) silicon substrates are used as templates for creating a periodic, pyramidal structured, free-standing thin gold film. Consistent with the findings from the theoretical studies, a nano-sized hole of 50 nm square was milled through the gold film at a specific location in the cavity to provide electric field control which can subsequently used for enhancement of fluorescence or Raman scattering of molecules in the nanopore.
0957-4484
1-11
Grant-Jacob, James
c5d144d8-3c43-4195-8e80-edd96bfda91b
Oo, Swe Zin
6495f6da-8f17-4484-98fb-6151b4efbd9a
Carpignano, Francesca
16438e4c-f628-43a4-9edb-8d8ef62136d2
Boden, Stuart A.
83976b65-e90f-42d1-9a01-fe9cfc571bf8
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Charlton, Martin D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Melvin, Tracy
fd87f5eb-2bb9-48fa-b7be-7100ace9c50f
Grant-Jacob, James
c5d144d8-3c43-4195-8e80-edd96bfda91b
Oo, Swe Zin
6495f6da-8f17-4484-98fb-6151b4efbd9a
Carpignano, Francesca
16438e4c-f628-43a4-9edb-8d8ef62136d2
Boden, Stuart A.
83976b65-e90f-42d1-9a01-fe9cfc571bf8
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Charlton, Martin D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Melvin, Tracy
fd87f5eb-2bb9-48fa-b7be-7100ace9c50f

Grant-Jacob, James, Oo, Swe Zin, Carpignano, Francesca, Boden, Stuart A., Brocklesby, William S., Charlton, Martin D.B. and Melvin, Tracy (2015) Design and fabrication of a 3D-structured gold film with nanopores for local electric field enhancement in the pore. Nanotechnology, 27 (6), 1-11. (doi:10.1088/0957-4484/27/6/065302).

Record type: Article

Abstract

Three-dimensionally structured gold membrane films with nanopores of defined, periodic geometries are designed and fabricated to provide the spatially localised enhancement of electric fields by manipulation of the plasmons inside nanopores. Square nanopores of different size and orientation relative to the pyramid are considered for films in aqueous and air environments, which allow for control of the position of electric fields within the structure. Designs suitable for use with 780 nm light were created. Here, periodic pyramidal cavities produced by potassium hydroxide etching to the {111} planes of (100) silicon substrates are used as templates for creating a periodic, pyramidal structured, free-standing thin gold film. Consistent with the findings from the theoretical studies, a nano-sized hole of 50 nm square was milled through the gold film at a specific location in the cavity to provide electric field control which can subsequently used for enhancement of fluorescence or Raman scattering of molecules in the nanopore.

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e-pub ahead of print date: 20 November 2015
Published date: 18 December 2015
Organisations: Optoelectronics Research Centre, Electronics & Computer Science

Identifiers

Local EPrints ID: 387914
URI: https://eprints.soton.ac.uk/id/eprint/387914
ISSN: 0957-4484
PURE UUID: f208b6d0-3b53-41ea-a18a-50bfe0b30cec
ORCID for James Grant-Jacob: ORCID iD orcid.org/0000-0002-4270-4247
ORCID for Stuart A. Boden: ORCID iD orcid.org/0000-0002-4232-1828
ORCID for William S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712

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Date deposited: 17 Feb 2016 16:34
Last modified: 19 Nov 2019 02:02

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