Journal
PHYSICAL REVIEW B
Volume 82, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.241402
Keywords
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Funding
- NSFC [10625418, 10874233, 10904171]
- MOST [2006DFB02020, 2009CB930700]
- CAS
- National Science Foundation [CNS-0421109]
- Robert A Welch Foundation [C-1220, C-1222]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences
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We investigate how the properties of a nearby substrate modify the excitation and propagation of plasmons in subwavelength silver wires. With decreasing nanowire-substrate separation, the in-coupling efficiency shows strongly oscillatory behavior due to coherent interference. The plasmon damping increases with decreasing separation due to an increased coupling of the nanowire plasmons to the photonic modes of the substrate.
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