Journal
ADVANCED MATERIALS
Volume 26, Issue 35, Pages 6106-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201401474
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Funding
- NSF [DMR-0747822, DMR-1306878]
- Welch Foundation [F-1662, F-1672]
- AFOSR [FA9550-10-1-0022, ARO-W911NF-08-1-0348, ONR-N00014-10-1-0942]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1306878] Funding Source: National Science Foundation
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Using atomically smooth epitaxial silver films, new optical permittivity highlighting significant loss reduction in the visible frequency range is extracted. Largely enhanced propagation distances of surface plasmon polaritons are measured, confirming the low intrinsic loss in silver. The new permittivity is free of extrinsic spectral features associated with grain boundaries and localized plasmons inevitably present in thermally deposited films.
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