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Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip
Due to the field enhancement effect of the hollow-core metal-cladded optical waveguide chip, massive nanoparticles in a solvent are effectively trapped via exciting ultrahigh order modes. A concentric ring structure of the trapped nanoparticles is obtained since the excited modes are omnidirectional...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4994086/ https://www.ncbi.nlm.nih.gov/pubmed/27550743 http://dx.doi.org/10.1038/srep32018 |
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author | Dai, Hailang Cao, Zhuangqi Wang, Yuxing Li, Honggen Sang, Minghuang Yuan, Wen Chen, Fan Chen, Xianfeng |
author_facet | Dai, Hailang Cao, Zhuangqi Wang, Yuxing Li, Honggen Sang, Minghuang Yuan, Wen Chen, Fan Chen, Xianfeng |
author_sort | Dai, Hailang |
collection | PubMed |
description | Due to the field enhancement effect of the hollow-core metal-cladded optical waveguide chip, massive nanoparticles in a solvent are effectively trapped via exciting ultrahigh order modes. A concentric ring structure of the trapped nanoparticles is obtained since the excited modes are omnidirectional at small incident angle. During the process of solvent evaporation, the nanoparticles remain well trapped since the excitation condition of the optical modes is still valid, and a concentric circular grating consisting of deposited nanoparticles can be produced by this approach. Experiments via scanning electron microscopy, atomic force microscopy and diffraction of a probe laser confirmed the above hypothesis. This technique provides an alternative strategy to enable effective trapping of dielectric particles with low-intensity nonfocused illumination, and a better understanding of the correlation between the guided modes in an optical waveguide and the nanoparticles in a solvent. |
format | Online Article Text |
id | pubmed-4994086 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-49940862016-08-30 Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip Dai, Hailang Cao, Zhuangqi Wang, Yuxing Li, Honggen Sang, Minghuang Yuan, Wen Chen, Fan Chen, Xianfeng Sci Rep Article Due to the field enhancement effect of the hollow-core metal-cladded optical waveguide chip, massive nanoparticles in a solvent are effectively trapped via exciting ultrahigh order modes. A concentric ring structure of the trapped nanoparticles is obtained since the excited modes are omnidirectional at small incident angle. During the process of solvent evaporation, the nanoparticles remain well trapped since the excitation condition of the optical modes is still valid, and a concentric circular grating consisting of deposited nanoparticles can be produced by this approach. Experiments via scanning electron microscopy, atomic force microscopy and diffraction of a probe laser confirmed the above hypothesis. This technique provides an alternative strategy to enable effective trapping of dielectric particles with low-intensity nonfocused illumination, and a better understanding of the correlation between the guided modes in an optical waveguide and the nanoparticles in a solvent. Nature Publishing Group 2016-08-23 /pmc/articles/PMC4994086/ /pubmed/27550743 http://dx.doi.org/10.1038/srep32018 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Dai, Hailang Cao, Zhuangqi Wang, Yuxing Li, Honggen Sang, Minghuang Yuan, Wen Chen, Fan Chen, Xianfeng Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip |
title | Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip |
title_full | Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip |
title_fullStr | Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip |
title_full_unstemmed | Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip |
title_short | Concentric Circular Grating Generated by the Patterning Trapping of Nanoparticles in an Optofluidic Chip |
title_sort | concentric circular grating generated by the patterning trapping of nanoparticles in an optofluidic chip |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4994086/ https://www.ncbi.nlm.nih.gov/pubmed/27550743 http://dx.doi.org/10.1038/srep32018 |
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