Active Two-Dimensional Steering of Radiation from a Nanoaperture

[Image: see text] We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited....

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Autores principales: Dreissen, Laura S., Schouten, Hugo F., Ubachs, Wim, Raghunathan, Shreyas B., Visser, Taco D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6328275/
https://www.ncbi.nlm.nih.gov/pubmed/30372090
http://dx.doi.org/10.1021/acs.nanolett.8b03319
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author Dreissen, Laura S.
Schouten, Hugo F.
Ubachs, Wim
Raghunathan, Shreyas B.
Visser, Taco D.
author_facet Dreissen, Laura S.
Schouten, Hugo F.
Ubachs, Wim
Raghunathan, Shreyas B.
Visser, Taco D.
author_sort Dreissen, Laura S.
collection PubMed
description [Image: see text] We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nanoaperture. Robust and stable steering of 9.5° in two orthogonal directions was achieved.
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spelling pubmed-63282752019-01-17 Active Two-Dimensional Steering of Radiation from a Nanoaperture Dreissen, Laura S. Schouten, Hugo F. Ubachs, Wim Raghunathan, Shreyas B. Visser, Taco D. Nano Lett [Image: see text] We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nanoaperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nanoaperture. Robust and stable steering of 9.5° in two orthogonal directions was achieved. American Chemical Society 2018-10-29 2018-11-14 /pmc/articles/PMC6328275/ /pubmed/30372090 http://dx.doi.org/10.1021/acs.nanolett.8b03319 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Dreissen, Laura S.
Schouten, Hugo F.
Ubachs, Wim
Raghunathan, Shreyas B.
Visser, Taco D.
Active Two-Dimensional Steering of Radiation from a Nanoaperture
title Active Two-Dimensional Steering of Radiation from a Nanoaperture
title_full Active Two-Dimensional Steering of Radiation from a Nanoaperture
title_fullStr Active Two-Dimensional Steering of Radiation from a Nanoaperture
title_full_unstemmed Active Two-Dimensional Steering of Radiation from a Nanoaperture
title_short Active Two-Dimensional Steering of Radiation from a Nanoaperture
title_sort active two-dimensional steering of radiation from a nanoaperture
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6328275/
https://www.ncbi.nlm.nih.gov/pubmed/30372090
http://dx.doi.org/10.1021/acs.nanolett.8b03319
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