Low-temperature enhancement of plasmonic performance in silver films

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00448747" target="_blank" >RIV/68378271:_____/15:00448747 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/OME.5.001147" target="_blank" >http://dx.doi.org/10.1364/OME.5.001147</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OME.5.001147" target="_blank" >10.1364/OME.5.001147</a>

Result language
angličtina
Original language name
Low-temperature enhancement of plasmonic performance in silver films
Original language description
While plasmonic metals can manipulate optical energy at the nanoscale, they suffer from significant losses at visible wavelengths. We investigate the potential of low temperature to decrease such losses in optically thick Ag films. We extract the complexdielectric function (or relative permittivity) from spectroscopic ellipsometry measurements for smooth single-crystalline, smooth polycrystalline, and rough polycrystalline films down to liquid-helium temperatures and fit these data to a temperature-dependent Drude model. Smooth single-crystalline films exhibited the largest improvements relative to room temperature. Below 50 K, the surface plasmon polariton propagation lengths increased by 50% at 650 nm. In rough polycrystalline films, improvements of10% are expected.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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