Controlling surface plasmon excitation of pair arrays of metallic nanocylinders

Ng, Matthew Y. K.; Liu, W.-C.

doi:10.1007/s00339-007-4123-5

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…The simultaneous illumination of several particles with polarized laser light generates the local field enhancements where the light is confined effectively in the gaps between particles. In the case of an array, high local fields appear between particle pairs in vertical and horizontal orientations relative to the polarized light 37. This means that high local field enhancement can be effectively generated, which causes the fluorescence of both dyes to be enhanced by the high absorption rates at excitation wavelengths.…”

Section: Resultsmentioning

confidence: 99%

“…In the case of an array, high local fields appear between particle pairs in vertical and horizontal orientations relative to the polarized light. 37 This means that high local field enhancement can be effectively generated, which causes the fluorescence of both dyes to be enhanced by the high absorption rates at excitation wavelengths. The largest enhancements of local fields (E) are generated at the particle tips.…”

Section: Resultsmentioning

confidence: 99%

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Correlation between Scattering Properties of Silver Particle Arrays and Fluorescence Enhancement

et al. 2008

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We report on the nanofabrication of patterned silver particle arrays using electron-beam lithography and the evaluation of their optical properties using backscattering and fluorescence spectroscopy. The silver particles varied in size from 100 to 250 nm and were in the shape of circles, squares, and triangles. Three inter-particle separations, 40, 65, and 90 nm as measured from the side of one particle to the side of the next particle, were used. We observed distinctive patterns of backscattering and fluorescence intensity depending on the particle size, inter-particle spacing, and excitation/emission wavelength used. Our approach allows for a study of the correlation between the backscattering intensities and fluorescence enhancement of silver particle arrays, which can be used to optimize the arrays for multi-fluorophore configuration for advanced sensing designs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%