Mechanical deformation sensor based on plasmonic nanoparticles
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United States of America Patent
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Jun 11, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jan 28, 2016
filing date -
Feb 2, 2015
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Abstract
An apparatus (517) comprising first and second plasmonic nanoparticles (502a, 502b) connected to one another by a deformable member (518), the first and second plasmonic nanoparticles each configured to exhibit a respective plasmon resonance when exposed to incident electromagnetic radiation (203), wherein, in a first configuration, the first and second plasmonic nanoparticles are in sufficient proximity to one another that their respective plasmon resonances can interact to produce a resulting plasmon resonance, and wherein mechanical deformation of the deformable member causes a variation in the relative position of the plasmonic nanoparticles to a second configuration to produce a detectable change in the resulting plasmon resonance of the first configuration which can be used to determine said mechanical deformation.
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