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Subsurface probing of terahertz particle plasmons
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10.1063/1.2718504
/content/aip/journal/apl/90/13/10.1063/1.2718504
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/13/10.1063/1.2718504
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Diagram depicting the sputter deposition method used to fabricate Cu particles coated with multilayers. (b) Illustration of a single Cu microparticle coated with four alternating Au and Cu layers. The alternating layers produce a spatially modulated potential beneath the microparticle surface, which augments the nonradiative losses at the particle surface. (c) Time-domain wave forms of the terahertz pulses transmitted through Cu microparticles with alternating nanolayers. (d) Magnified image of the time-domain terahertz wave forms transmitted through particle ensembles where the numbers of layers are 1, 3, and 5. These samples are coated with a thick exterior Au layer.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Experimental and (b) calculated relative spectral transmission amplitudes for samples with varying number of layers normalized with respect to that of the uncoated particles.

Image of FIG. 3.
FIG. 3.

(Color online) Calculated subsurface penetration distance of terahertz particle plasmon into the Cu multilayered microparticles. Also shown are the experimental skin depth values for Au and Cu from Ref. 14.

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/content/aip/journal/apl/90/13/10.1063/1.2718504
2007-03-30
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Subsurface probing of terahertz particle plasmons
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/13/10.1063/1.2718504
10.1063/1.2718504
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