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Linear plasmon ruler with tunable measurement range and sensitivity
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10.1063/1.3463415
/content/aip/journal/jap/108/3/10.1063/1.3463415
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/3/10.1063/1.3463415

Figures

Image of FIG. 1.
FIG. 1.

Plasmon hybridization scheme of NR dimers aligned end-to-end and side-by-side.

Image of FIG. 2.
FIG. 2.

Extinction spectra of NR dimer aligned end-to-end with incident angle (dotted line) and 45° (shot dotted line), where the NR length , radius , and the interparticle separation is 10 nm. The dashed and shot dashed lines are the extinction spectra of a single NR with and 45°, respectively, where .

Image of FIG. 3.
FIG. 3.

Extinction spectra of NR dimer aligned side-by-side with incident angle (dashed line), 45° (shot dotted line), and 90° (shot dashed line), where (a) , , (b) , , (c) , , the interparticle separation , and the solid lines are the spectra of single NRs.

Image of FIG. 4.
FIG. 4.

Extinction spectra of NR dimer aligned side-by-side with interparticle separation (shot dashed line), 24 nm (shot dotted line), 48 nm (dashed line), and 96 nm (dashed dotted line), where (a) , , (b) , , (c) , , the incident angle , and the solid lines are the spectra of single NRs.

Image of FIG. 5.
FIG. 5.

(a) Cross section structure of linear plasmon ruler constructed with Au NS dimer and NR dimer, is the structure center point, is the spheres interparticle separation, and the distance between NSs and NRs is . (b) Extinction spectra of linear plasmon ruler with different , where , , , , and the solid line is the spectrum of NR dimer. (c) Dark mode resonant wavelength shifts vs , where the straight line is the linear fit for the points in the range of , and the resonant wavelengths is 857 nm when .

Image of FIG. 6.
FIG. 6.

(a) Extinction spectra of linear plasmon ruler with different , where , , , , and the solid line is the spectrum of NR dimer. (b) Dark mode resonant wavelength shifts vs for linear plasmon ruler with (filled circles), 320 nm (filled triangles), and 400 nm (filled squares), where the straight lines are linear fit for the points in the range of , and the resonant wavelengths at are 1078 nm, 1184 nm, and 1401 nm, respectively.

Image of FIG. 7.
FIG. 7.

(a) Dark mode resonant wavelength shifts vs for linear plasmon ruler with (filled circles), 12 nm (filled triangles), and 16 nm (filled squares), where the resonant wavelengths at are 1078 nm, 1068 nm, and 1061 nm, respectively. (b) Dark mode resonant wavelength shifts vs for linear plasmon ruler with (filled triangles), 40 nm (filled circles), and 48 nm (filled squares), where the resonant wavelengths at are 1074 nm, 1078 nm, and 1095 nm, respectively.

Image of FIG. 8.
FIG. 8.

Dark mode resonant wavelength shifts vs for linear plasmon ruler with (filled squares), (filled triangles), and only add one NS in the gap (filled circles), where the resonant wavelengths at for linear plasmon ruler with one and two NSs are 1393 nm and 1401 nm, respectively.

Image of FIG. 9.
FIG. 9.

(a) Field intensity distributions at the cross section of NR dimer, and linear plasmon ruler with (b) 32 nm, (c) 240 nm, and (d) 400 nm, where the polarization vector is indicated by arrows, , , , , and the resonant excitation wavelengths are 1384 nm, 1418 nm, 1562 nm, and 1422 nm, respectively.

Tables

Generic image for table
Table I.

Scattering quantum yield values of NR dimer aligned side-by-side with different incident angle and physical size, where the NR aspect ratio .

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/content/aip/journal/jap/108/3/10.1063/1.3463415
2010-08-06
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Linear plasmon ruler with tunable measurement range and sensitivity
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/3/10.1063/1.3463415
10.1063/1.3463415
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