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Low-power and ultrafast all-optical tunable plasmon-induced transparency in plasmonic nanostructures
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10.1063/1.4807765
/content/aip/journal/apl/102/20/10.1063/1.4807765
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/20/10.1063/1.4807765
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Figures

Image of FIG. 1.
FIG. 1.

Characteristics of the plasmonic nanostructure. (a) Schematic structure. (b) SEM image of gold grating without covered polycrystalline LiNbO layer. (c) AFM image of a 120-nm thick LiNbO film. (d) AFM image of a 25-nm thick gold film.

Image of FIG. 2.
FIG. 2.

Measured (a) and calculated (b) linear transmission spectrum for TM polarization case. Arrow indicates the position of the probe laser. Dotted curve is for the reference sample. Dashed vertical line indicates the position of the waveguide mode calculated using wavevector match condition. Measured results (c) and calculated (d) linear transmission spectrum for TE polarization case. (e) Measured linear transmission spectrum of a 25-nm thick gold film embedded in a 120-nm thick polycrystalline LiNbO layer.

Image of FIG. 3.
FIG. 3.

Measured (a) and calculated (b) extinction spectrum for TM polarization case. Dotted curve is for the reference sample. Calculated electric-field distribution for a 580-nm (c), 600-nm (d), and 700-nm (e) incident light. Measured (f) and calculated (g) extinction spectrum for TE polarization case. (h) Calculated electric-field distribution for a 610-nm incident light.

Image of FIG. 4.
FIG. 4.

All-optical tunability of plasmonic-induced transparency. (a) Measured transmission changes of a 600-nm probe light as a function of the time delay between the pump and probe pulses. The thick line represents the exponentially fitted result. (b) Calculated transmission spectrum of the gold/polycrystalline LiNbO plasmonic nanostructure with different pump intensities.

Image of FIG. 5.
FIG. 5.

(a) Linear absorption spectrum of a 120-nm thick polycrystalline LiNbO film. (b) OKE signal of a 120-nm thick polycrystalline LiNbO filmand a 170-m thick SiO film. PLN represents polycrystalline LiNbO. (c) Calculated extinction spectrum of gold grating embedded in background material with a refractive index equal to that of polycrystalline LiNbO.

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/content/aip/journal/apl/102/20/10.1063/1.4807765
2013-05-24
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low-power and ultrafast all-optical tunable plasmon-induced transparency in plasmonic nanostructures
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/20/10.1063/1.4807765
10.1063/1.4807765
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