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Strong optical absorption of a metallic film to induce a lensing effect in the visible region

In this work, the two-dimensional profile of the light transmission through a prism-like metallic film sample of Au was measured at a wavelength of 632.8 nm in the visible intraband transition region to verify that, beyond the possible mechanisms of overcoming the diffraction limit, a strongly nonun...

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Autores principales: Jiang, An-Qing, Zang, Kai-Yan, Hu, Er-Tao, Tu, Hua-Tian, Xu, Lei, Ren, Wen-Shuai, Yoshie, Osamu, Lee, Young-Pak, Zheng, Yu-Xiang, Wang, Song-You, Zhao, Hai-Bin, Guo, Jun-Peng, Wang, C. Z., Ho, K. M., Lynch, David. W., Chen, Liang-Yao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712021/
https://www.ncbi.nlm.nih.gov/pubmed/31455835
http://dx.doi.org/10.1038/s41598-019-48938-z
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author Jiang, An-Qing
Zang, Kai-Yan
Hu, Er-Tao
Tu, Hua-Tian
Xu, Lei
Ren, Wen-Shuai
Yoshie, Osamu
Lee, Young-Pak
Zheng, Yu-Xiang
Wang, Song-You
Zhao, Hai-Bin
Guo, Jun-Peng
Wang, C. Z.
Ho, K. M.
Lynch, David. W.
Chen, Liang-Yao
author_facet Jiang, An-Qing
Zang, Kai-Yan
Hu, Er-Tao
Tu, Hua-Tian
Xu, Lei
Ren, Wen-Shuai
Yoshie, Osamu
Lee, Young-Pak
Zheng, Yu-Xiang
Wang, Song-You
Zhao, Hai-Bin
Guo, Jun-Peng
Wang, C. Z.
Ho, K. M.
Lynch, David. W.
Chen, Liang-Yao
author_sort Jiang, An-Qing
collection PubMed
description In this work, the two-dimensional profile of the light transmission through a prism-like metallic film sample of Au was measured at a wavelength of 632.8 nm in the visible intraband transition region to verify that, beyond the possible mechanisms of overcoming the diffraction limit, a strongly nonuniform optical absorption path length of the light traveling in the metal could induce a lensing effect, thereby narrowing the image of an object. A set of prism-like Au samples with different angles was prepared and experimentally investigated. Due to the nonuniform paths of the light traveling in the Au samples, lens-effect-like phenomena were clearly observed that reduced the imaged size of the beam spot with decreasing light intensity. The experimental measurements presented in the work may provide new insight to better understand the light propagation behavior at a metal/dielectric interface.
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spelling pubmed-67120212019-09-13 Strong optical absorption of a metallic film to induce a lensing effect in the visible region Jiang, An-Qing Zang, Kai-Yan Hu, Er-Tao Tu, Hua-Tian Xu, Lei Ren, Wen-Shuai Yoshie, Osamu Lee, Young-Pak Zheng, Yu-Xiang Wang, Song-You Zhao, Hai-Bin Guo, Jun-Peng Wang, C. Z. Ho, K. M. Lynch, David. W. Chen, Liang-Yao Sci Rep Article In this work, the two-dimensional profile of the light transmission through a prism-like metallic film sample of Au was measured at a wavelength of 632.8 nm in the visible intraband transition region to verify that, beyond the possible mechanisms of overcoming the diffraction limit, a strongly nonuniform optical absorption path length of the light traveling in the metal could induce a lensing effect, thereby narrowing the image of an object. A set of prism-like Au samples with different angles was prepared and experimentally investigated. Due to the nonuniform paths of the light traveling in the Au samples, lens-effect-like phenomena were clearly observed that reduced the imaged size of the beam spot with decreasing light intensity. The experimental measurements presented in the work may provide new insight to better understand the light propagation behavior at a metal/dielectric interface. Nature Publishing Group UK 2019-08-27 /pmc/articles/PMC6712021/ /pubmed/31455835 http://dx.doi.org/10.1038/s41598-019-48938-z Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jiang, An-Qing
Zang, Kai-Yan
Hu, Er-Tao
Tu, Hua-Tian
Xu, Lei
Ren, Wen-Shuai
Yoshie, Osamu
Lee, Young-Pak
Zheng, Yu-Xiang
Wang, Song-You
Zhao, Hai-Bin
Guo, Jun-Peng
Wang, C. Z.
Ho, K. M.
Lynch, David. W.
Chen, Liang-Yao
Strong optical absorption of a metallic film to induce a lensing effect in the visible region
title Strong optical absorption of a metallic film to induce a lensing effect in the visible region
title_full Strong optical absorption of a metallic film to induce a lensing effect in the visible region
title_fullStr Strong optical absorption of a metallic film to induce a lensing effect in the visible region
title_full_unstemmed Strong optical absorption of a metallic film to induce a lensing effect in the visible region
title_short Strong optical absorption of a metallic film to induce a lensing effect in the visible region
title_sort strong optical absorption of a metallic film to induce a lensing effect in the visible region
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712021/
https://www.ncbi.nlm.nih.gov/pubmed/31455835
http://dx.doi.org/10.1038/s41598-019-48938-z
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