Surface Plasmon Interference Device as a Source of Near-Field Power for Photoluminescence

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU147356" target="_blank" >RIV/00216305:26210/22:PU147356 - isvavai.cz</a>
Result on the web
<a href="http://przyrbwn.icm.edu.pl/APP/PDF/142/app142z5p17.pdf" target="_blank" >http://przyrbwn.icm.edu.pl/APP/PDF/142/app142z5p17.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.142.668" target="_blank" >10.12693/APhysPolA.142.668</a>

Result language
angličtina
Original language name
Surface Plasmon Interference Device as a Source of Near-Field Power for Photoluminescence
Original language description
We theoretically demonstrate that a simple device consisting of an opaque gold layer with subwavelength slits - the so-called surface plasmon interference device - is capable of transforming the far-field optical power to the near-field one. Optimized slits yield a high conversion efficiency amounting to 45% in terms of the near-field to far-field electric intensity ratio. With a single linear slit arrangement, a propagating wave with a homogeneous field distribution is formed, attributed to surface plasmon polaritons based on its polarization properties. On the other hand, with the slit arrangement supporting interference, it is possible to obtain a standing wave with characteristic spatially modulated interference fringes and spatially separate polarization components. A circular slit can be used for focusing the near-field, with the possibility of obtaining a considerably enhanced field with respect to the excitation. We discuss the implication of the enhanced near-field for the near-field excitation of photoluminescence with the capability to bring a spatial resolution of the photoluminescence spectroscopy beyond the diffraction limit. © 2022 Polish Academy of Sciences. All rights reserved.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GA19-06621S" target="_blank" >GA19-06621S: Near-field and far-field luminescence of layered semiconductors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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