PLASMONIC NANOPARTICLES WITH HIDDEN CHIROPTICAL ACTIVITY
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United States of America Patent
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Jun 29, 2017
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Dec 29, 2016
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Dec 29, 2015
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A method is presented to minimize the helical pitch (P) of chiroplasmonic nanostructures to the molecular size-comparable scale. In particular, chiroplasmonic nanostructures can be used to induce plasmonic chirality via chirality transfer and used for chirality-related primary applications such as chiral sensing. In one aspect, there is provided a chiroptically active plasmonic nanoparticle with a helical pitch (P) less than its wire diameter (d) produced via a glancing angle deposition (GLAD) process.
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