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Antisymmetric plasmon resonance in coupled gold nanoparticles as a sensitive tool for detection of local index of refraction
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10.1063/1.2187432
/content/aip/journal/apl/88/12/10.1063/1.2187432
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/12/10.1063/1.2187432
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Figures

Image of FIG. 1.
FIG. 1.

Fabricated optomagnetic medium and its spectra. (a) A micrograph of the sample (, , and ) on which all data presented were collected. (b) The distribution of electric currents (conical arrows) inside a pair of pillars for the resonant symmetric mode. (c) Same for the antisymmetric mode. (d), (e) Experimental reflection spectra measured for TM and TE polarizations, respectively. The insets show the current distribution calculated by solving Maxwell equations for the actual experimental geometry at the resonant wavelengths.

Image of FIG. 2.
FIG. 2.

(a) Optical scheme for measurements of the reflection spectra. (b) The dynamics of the reflection spectra of the sample covered with a thin layer of glycerol : 1—the initial spectrum; 2—the spectrum after ; 3—after . The spectra are offset for clarity. Drying was assisted by a fan and illumination.

Image of FIG. 3.
FIG. 3.

(a) Reflection spectra registered in the presence of optically thin layers of liquids: 1—clean sample; 2—; 3—glycerol; 4—OCF463. (b) The antisymmetric resonance wavelength as a function of the refractive index of an optically-thin liquid layer.

Image of FIG. 4.
FIG. 4.

Fragment of the Raman spectra measured for the sample and the glass substrate covered with a thin layer of 2-propanol in TM and TE polarizations. The spectra are offset for clarity.

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/content/aip/journal/apl/88/12/10.1063/1.2187432
2006-03-23
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Antisymmetric plasmon resonance in coupled gold nanoparticles as a sensitive tool for detection of local index of refraction
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/12/10.1063/1.2187432
10.1063/1.2187432
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