Ultrafast Nonlinear control of progressively loaded, single plasmonic nanoantennas fabricated using helium ion milling
Ultrafast Nonlinear control of progressively loaded, single plasmonic nanoantennas fabricated using helium ion milling
We demonstrate milling of partial antenna gaps and narrow conducting bridges with nanometer precision using a helium ion beam microscope. Single particle spectroscopy shows large shifts in the plasmonic mode spectrum of the milled antennas, associated with the transition from capacitive to conductive gap loading. A conducting bridge of nanometer height is found sufficient to shift the antenna from the capacitive to the conductive coupling regime, in agreement with circuit theory. Picosecond pump-probe spectroscopy reveals an enhanced nonlinear response for partially milled antennas, reaching an optimum value for an intermediate bridge height. Our results show that manipulation of the antenna load can be used to increase the nonlinear response of plasmonic antennas
5647-5653
Wang, Yudong
c48bcc7c-4cb4-468c-af4e-d1e601222009
Abb, Martina
96f778af-f51a-464e-8e73-dfa24b4132de
Boden, Stuart A.
83976b65-e90f-42d1-9a01-fe9cfc571bf8
Aizpurua, Javier
17705349-38e3-4089-adba-547d02449095
de Groot, C.H.
92cd2e02-fcc4-43da-8816-c86f966be90c
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
2013
Wang, Yudong
c48bcc7c-4cb4-468c-af4e-d1e601222009
Abb, Martina
96f778af-f51a-464e-8e73-dfa24b4132de
Boden, Stuart A.
83976b65-e90f-42d1-9a01-fe9cfc571bf8
Aizpurua, Javier
17705349-38e3-4089-adba-547d02449095
de Groot, C.H.
92cd2e02-fcc4-43da-8816-c86f966be90c
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Wang, Yudong, Abb, Martina, Boden, Stuart A., Aizpurua, Javier, de Groot, C.H. and Muskens, Otto L.
(2013)
Ultrafast Nonlinear control of progressively loaded, single plasmonic nanoantennas fabricated using helium ion milling.
Nano Letters, 13 (11), .
(doi:10.1021/nl403316z).
(PMID:24127754)
Abstract
We demonstrate milling of partial antenna gaps and narrow conducting bridges with nanometer precision using a helium ion beam microscope. Single particle spectroscopy shows large shifts in the plasmonic mode spectrum of the milled antennas, associated with the transition from capacitive to conductive gap loading. A conducting bridge of nanometer height is found sufficient to shift the antenna from the capacitive to the conductive coupling regime, in agreement with circuit theory. Picosecond pump-probe spectroscopy reveals an enhanced nonlinear response for partially milled antennas, reaching an optimum value for an intermediate bridge height. Our results show that manipulation of the antenna load can be used to increase the nonlinear response of plasmonic antennas
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WangNanoLettHIM_131014.pdf
- Accepted Manuscript
More information
e-pub ahead of print date: 15 October 2013
Published date: 2013
Organisations:
Nanoelectronics and Nanotechnology, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 365514
URI: https://eprints.soton.ac.uk/id/eprint/365514
ISSN: 1530-6984
PURE UUID: e76da7ff-1d32-4353-a872-26eec1af6998
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Date deposited: 09 Jun 2014 08:38
Last modified: 06 Jun 2018 12:50
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Contributors
Author:
Yudong Wang
Author:
Martina Abb
Author:
Stuart A. Boden
Author:
Javier Aizpurua
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