Wang, H and Brandl, Daniel W. and Le, F and Nordlander, P and Halas, Naomi J. (2006) Nanorice: A hybrid plasmonic nanostructure. NANO LETTERS, 6 (4). pp. 827-832.
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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl060209w
We have designed and fabricated a new hybrid nanoparticle that combines the intense local fields of nanorods with the highly tunable plasmon resonances of nanoshells. This dielectric core-metallic shell prolate spheroid nanoparticle bears a remarkable resemblance to a grain of rice, inspiring the name ``nanorice''. This geometry possesses far greater structural tunability than either a nanorod or a nanoshell, along with much larger local field intensity enhancements and far greater sensitivity as a surface plasmon resonance (SPR) nanosensor than any dielectric-metal nanostructures reported previously. Invoking the plasmon hybridization picture allows us to understand the plasmon resonances of this geometry, as arising from a hybridization of the primitive plasmons of a solid spheroid and an ellipsoidal cavity inside a continuous metal.
|Subjects:||Material Science > Functional and hybrid materials|
Analytical Science > Nanotechnology for sensing and actuating
|Deposited By:||Lesley Tobin|
|Deposited On:||20 Jan 2009 12:16|
|Last Modified:||26 Mar 2009 17:42|
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