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Insight into the working wavelength of hotspot effects generated by popular nanostructures
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| Zeitschriftentitel: | Nanotechnology Reviews |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | Nanotechnology Reviews, 8, 2019, 1, S. 24-34 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Walter de Gruyter GmbH
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| Schlagwörter: |
| author_facet |
Wang, Zhong Cai, Kesu Lu, Yang Wu, Haining Li, Yuee Zhou, Qingguo Wang, Zhong Cai, Kesu Lu, Yang Wu, Haining Li, Yuee Zhou, Qingguo |
|---|---|
| author |
Wang, Zhong Cai, Kesu Lu, Yang Wu, Haining Li, Yuee Zhou, Qingguo |
| spellingShingle |
Wang, Zhong Cai, Kesu Lu, Yang Wu, Haining Li, Yuee Zhou, Qingguo Nanotechnology Reviews Insight into the working wavelength of hotspot effects generated by popular nanostructures Surfaces, Coatings and Films Process Chemistry and Technology Energy Engineering and Power Technology Biomaterials Medicine (miscellaneous) Biotechnology |
| author_sort |
wang, zhong |
| spelling |
Wang, Zhong Cai, Kesu Lu, Yang Wu, Haining Li, Yuee Zhou, Qingguo 2191-9097 Walter de Gruyter GmbH Surfaces, Coatings and Films Process Chemistry and Technology Energy Engineering and Power Technology Biomaterials Medicine (miscellaneous) Biotechnology http://dx.doi.org/10.1515/ntrev-2019-0003 <jats:title>Abstract</jats:title> <jats:p>A proper excitation wavelength is much important for the application of surface-enhanced Raman spectroscopy (SERS) in the biochemical field. Here, based on a SERS substrate model with an incident Gaussian beam, we investigate the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, including nanosphere dimer, nanorod dimer, and nanorod arrays. The results in the present manuscript indicate that both the nanosphere and nanorod dimer present a much broader plasmonic excitation wavelength range extending to the near-infrared region. The enhancement effect of Nanorod arrays is strongly dependent on the incident direction of excitation light. Finally, according to the conclusions above, a SERS substrate consisting of nanocubes based on the SPP eigen-mode is proposed and the electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. The enhancement factor is not ultrahigh; however, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> <jats:p><jats:fig id="j_ntrev-2019-0003_fig_001" position="float" fig-type="figure"> <jats:graphic xlink:href="graphic/j_ntrev-2019-0003_fig_001.jpg" /> </jats:fig></jats:p> <jats:p><jats:bold>Graphical abstract</jats:bold>: By investigating the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, we propose a SERS substrate consisting of Au nanocubes based on the SPP eigenmode. The electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. Though the enhancement factor is not ultrahigh, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> Insight into the working wavelength of hotspot effects generated by popular nanostructures Nanotechnology Reviews |
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10.1515/ntrev-2019-0003 |
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Physik Biologie Medizin Allgemeines Technik Chemie und Pharmazie |
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Walter de Gruyter GmbH, 2019 |
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2019 |
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Walter de Gruyter GmbH |
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Nanotechnology Reviews |
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49 |
| title |
Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_unstemmed |
Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_full |
Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_fullStr |
Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_full_unstemmed |
Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_short |
Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_sort |
insight into the working wavelength of hotspot effects generated by popular nanostructures |
| topic |
Surfaces, Coatings and Films Process Chemistry and Technology Energy Engineering and Power Technology Biomaterials Medicine (miscellaneous) Biotechnology |
| url |
http://dx.doi.org/10.1515/ntrev-2019-0003 |
| publishDate |
2019 |
| physical |
24-34 |
| description |
<jats:title>Abstract</jats:title>
<jats:p>A proper excitation wavelength is much important for the application of surface-enhanced Raman spectroscopy (SERS) in the biochemical field. Here, based on a SERS substrate model with an incident Gaussian beam, we investigate the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, including nanosphere dimer, nanorod dimer, and nanorod arrays. The results in the present manuscript indicate that both the nanosphere and nanorod dimer present a much broader plasmonic excitation wavelength range extending to the near-infrared region. The enhancement effect of Nanorod arrays is strongly dependent on the incident direction of excitation light. Finally, according to the conclusions above, a SERS substrate consisting of nanocubes based on the SPP eigen-mode is proposed and the electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. The enhancement factor is not ultrahigh; however, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p>
<jats:p><jats:fig id="j_ntrev-2019-0003_fig_001" position="float" fig-type="figure">
<jats:graphic xlink:href="graphic/j_ntrev-2019-0003_fig_001.jpg" />
</jats:fig></jats:p>
<jats:p><jats:bold>Graphical abstract</jats:bold>: By investigating the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, we propose a SERS substrate consisting of Au nanocubes based on the SPP eigenmode. The electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. Though the enhancement factor is not ultrahigh, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> |
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| author | Wang, Zhong, Cai, Kesu, Lu, Yang, Wu, Haining, Li, Yuee, Zhou, Qingguo |
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| description | <jats:title>Abstract</jats:title> <jats:p>A proper excitation wavelength is much important for the application of surface-enhanced Raman spectroscopy (SERS) in the biochemical field. Here, based on a SERS substrate model with an incident Gaussian beam, we investigate the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, including nanosphere dimer, nanorod dimer, and nanorod arrays. The results in the present manuscript indicate that both the nanosphere and nanorod dimer present a much broader plasmonic excitation wavelength range extending to the near-infrared region. The enhancement effect of Nanorod arrays is strongly dependent on the incident direction of excitation light. Finally, according to the conclusions above, a SERS substrate consisting of nanocubes based on the SPP eigen-mode is proposed and the electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. The enhancement factor is not ultrahigh; however, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> <jats:p><jats:fig id="j_ntrev-2019-0003_fig_001" position="float" fig-type="figure"> <jats:graphic xlink:href="graphic/j_ntrev-2019-0003_fig_001.jpg" /> </jats:fig></jats:p> <jats:p><jats:bold>Graphical abstract</jats:bold>: By investigating the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, we propose a SERS substrate consisting of Au nanocubes based on the SPP eigenmode. The electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. Though the enhancement factor is not ultrahigh, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> |
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| spelling | Wang, Zhong Cai, Kesu Lu, Yang Wu, Haining Li, Yuee Zhou, Qingguo 2191-9097 Walter de Gruyter GmbH Surfaces, Coatings and Films Process Chemistry and Technology Energy Engineering and Power Technology Biomaterials Medicine (miscellaneous) Biotechnology http://dx.doi.org/10.1515/ntrev-2019-0003 <jats:title>Abstract</jats:title> <jats:p>A proper excitation wavelength is much important for the application of surface-enhanced Raman spectroscopy (SERS) in the biochemical field. Here, based on a SERS substrate model with an incident Gaussian beam, we investigate the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, including nanosphere dimer, nanorod dimer, and nanorod arrays. The results in the present manuscript indicate that both the nanosphere and nanorod dimer present a much broader plasmonic excitation wavelength range extending to the near-infrared region. The enhancement effect of Nanorod arrays is strongly dependent on the incident direction of excitation light. Finally, according to the conclusions above, a SERS substrate consisting of nanocubes based on the SPP eigen-mode is proposed and the electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. The enhancement factor is not ultrahigh; however, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> <jats:p><jats:fig id="j_ntrev-2019-0003_fig_001" position="float" fig-type="figure"> <jats:graphic xlink:href="graphic/j_ntrev-2019-0003_fig_001.jpg" /> </jats:fig></jats:p> <jats:p><jats:bold>Graphical abstract</jats:bold>: By investigating the dependence of the electric field enhancement on the incident wavelength of the excitation laser for popular nanostructures, we propose a SERS substrate consisting of Au nanocubes based on the SPP eigenmode. The electric field enhancement is homogeneous, and insensitive to the polarization of the incident laser. Though the enhancement factor is not ultrahigh, good homogeneousness permits for quantitative detection of lower concentration components in mixtures.</jats:p> Insight into the working wavelength of hotspot effects generated by popular nanostructures Nanotechnology Reviews |
| spellingShingle | Wang, Zhong, Cai, Kesu, Lu, Yang, Wu, Haining, Li, Yuee, Zhou, Qingguo, Nanotechnology Reviews, Insight into the working wavelength of hotspot effects generated by popular nanostructures, Surfaces, Coatings and Films, Process Chemistry and Technology, Energy Engineering and Power Technology, Biomaterials, Medicine (miscellaneous), Biotechnology |
| title | Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_full | Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_fullStr | Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_full_unstemmed | Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_short | Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_sort | insight into the working wavelength of hotspot effects generated by popular nanostructures |
| title_unstemmed | Insight into the working wavelength of hotspot effects generated by popular nanostructures |
| topic | Surfaces, Coatings and Films, Process Chemistry and Technology, Energy Engineering and Power Technology, Biomaterials, Medicine (miscellaneous), Biotechnology |
| url | http://dx.doi.org/10.1515/ntrev-2019-0003 |