Journal
APPLIED PHYSICS LETTERS
Volume 87, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2112206
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Fluorescent beads were excited by a laser beam coupled through a multiwalled carbon nanotube array. The images of the fluorescent beads showed a distinctive dependence on the polarization direction of the laser beam owing to the surface plasmons induced from the metallic property of the array. The thickness of the array is 2 mu m as compared to the metallic films of tens of nanometers in thickness that are conventionally used for surface plasmon excitation. This remarkable photon coupling capacity of a multiwalled carbon nanotube array is attributed to the confinement of electrons in its outermost tube shells and ballistic transport. (C) 2005 American Institute of Physics.
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