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Optical anisotropy of electronic excitations in elliptical quantum dots
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10.1063/1.3080658
/content/aip/journal/apl/94/7/10.1063/1.3080658
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/7/10.1063/1.3080658
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron microscopy (SEM) images of the anisotropic QD. The semielliptical green shaded area represents the effective anisotropic confinement region of the electrons. represents the configuration of charge excitation when both incident and scattered light are parallel to the interdot axis. represents the same when they are perpendicular to the interdot axis. The energy parabola along the major and minor axes are shown with the respective excitations and . The bottom panel shows the inelastic light scattering charge excitation spectra for and configurations. The spectra are shifted vertically for clarity.

Image of FIG. 2.
FIG. 2.

Inelastic light scattering resonant enhancement profiles of the intershell charge collective modes in the two polarization configurations.

Image of FIG. 3.
FIG. 3.

Left vertical panels: SEM images of the anisotropic QD with different interdot distance . Right vertical panels: charge excitation spectra for and polarization configurations.

Image of FIG. 4.
FIG. 4.

Evolution of the energy splitting between the two charge modes in and polarization configurations as a function of the interdot distance. The insets show SEM images of the QDs corresponding to the two extreme points.

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/content/aip/journal/apl/94/7/10.1063/1.3080658
2009-02-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical anisotropy of electronic excitations in elliptical quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/7/10.1063/1.3080658
10.1063/1.3080658
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