Capillary-Force-Assisted Optical Tuning of Coupled Plasmons.
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Type
Article
Change log
Authors
Ding, Tao
Mertens, Jan
Sigle, Daniel O
Baumberg, Jeremy J
Abstract
An ultrathin (few nanometer) polymer spacer layer is softened by local optical heating and restructured by strong capillary forces, which increase the gap between the plasmonic metal components. This results in a continuous blue-shift of the coupled plasmon from near infrared to visible with a tuning range of >150 nm that can be tightly controlled by adjusting either irradiation time or power.
Description
Keywords
gold, nanogaps, plasmon resonance, polymer spacer layers, spectra, Gold, Lasers, Metal Nanoparticles, Microscopy, Electron, Scanning, Polymers
Journal Title
Adv Mater
Conference Name
Journal ISSN
0935-9648
1521-4095
1521-4095
Volume Title
27
Publisher
Wiley
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/G060649/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
Engineering and Physical Sciences Research Council (EP/K028510/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
Engineering and Physical Sciences Research Council (EP/K028510/1)
This work was supported by UK EPSRC grants EP/G060649/1, EP/L027151/1, and ERC grant LINASS 320503