Direct near-field optical imaging of plasmonic resonances in metal nanoparticle pairs

Hsing Ying Lin; Chen Han Huang; Chih Han Chang; Yun Chiang Lan; Hsiang Chen Chui

doi:10.1364/OE.18.000165

Direct near-field optical imaging of plasmonic resonances in metal nanoparticle pairs

Hsing Ying Lin, Chen Han Huang, Chih Han Chang, Yun Chiang Lan, Hsiang Chen Chui

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

In this paper we investigate the near-field optical behavior of plasmon coupling in gold nanoparticle pairs. In particular, by performing series measurements through a fiber-collection mode near-field scanning optical microscope (NSOM), we directly observed the localized electromagnetic (EM) field distribution between two nanospheres is sensitively depended on the incident polarization and interparticle distance. The qualitative near-field observation and quantitative analysis facilitate more understanding of localized hot spots in surface-enhanced Raman scattering (SERS), and nano-applications in selectively controlling the spatial distribution of localized surface plasmon (SP) modes on a fabricated nanostructure by adjusting the polarization direction.

Original language	English
Pages (from-to)	165-172
Number of pages	8
Journal	Optics Express
Volume	18
Issue number	1
DOIs	https://doi.org/10.1364/OE.18.000165
State	Published - 4 Jan 2010

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abstract = "In this paper we investigate the near-field optical behavior of plasmon coupling in gold nanoparticle pairs. In particular, by performing series measurements through a fiber-collection mode near-field scanning optical microscope (NSOM), we directly observed the localized electromagnetic (EM) field distribution between two nanospheres is sensitively depended on the incident polarization and interparticle distance. The qualitative near-field observation and quantitative analysis facilitate more understanding of localized hot spots in surface-enhanced Raman scattering (SERS), and nano-applications in selectively controlling the spatial distribution of localized surface plasmon (SP) modes on a fabricated nanostructure by adjusting the polarization direction.",

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AU - Lin, Hsing Ying

AU - Huang, Chen Han

AU - Chang, Chih Han

AU - Lan, Yun Chiang

AU - Chui, Hsiang Chen

PY - 2010/1/4

Y1 - 2010/1/4

N2 - In this paper we investigate the near-field optical behavior of plasmon coupling in gold nanoparticle pairs. In particular, by performing series measurements through a fiber-collection mode near-field scanning optical microscope (NSOM), we directly observed the localized electromagnetic (EM) field distribution between two nanospheres is sensitively depended on the incident polarization and interparticle distance. The qualitative near-field observation and quantitative analysis facilitate more understanding of localized hot spots in surface-enhanced Raman scattering (SERS), and nano-applications in selectively controlling the spatial distribution of localized surface plasmon (SP) modes on a fabricated nanostructure by adjusting the polarization direction.

AB - In this paper we investigate the near-field optical behavior of plasmon coupling in gold nanoparticle pairs. In particular, by performing series measurements through a fiber-collection mode near-field scanning optical microscope (NSOM), we directly observed the localized electromagnetic (EM) field distribution between two nanospheres is sensitively depended on the incident polarization and interparticle distance. The qualitative near-field observation and quantitative analysis facilitate more understanding of localized hot spots in surface-enhanced Raman scattering (SERS), and nano-applications in selectively controlling the spatial distribution of localized surface plasmon (SP) modes on a fabricated nanostructure by adjusting the polarization direction.

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VL - 18

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EP - 172

JO - Optics Express

JF - Optics Express

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Direct near-field optical imaging of plasmonic resonances in metal nanoparticle pairs

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