Optical Anisotropy of Electronic Excitations in Elliptical Quantum Dots - Condensed Matter > Mesoscale and Nanoscale PhysicsReport as inadecuate




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Abstract: The authors report that anisotropic confining potentials in laterally-coupledsemiconductor quantum dots QDs have large impacts in optical transitions andenergies of inter-shell collective electronic excitations. The observedanisotropies are revealed by inelastic light scattering as a function of thein-plane direction of light polarization and can be finely controlled bymodifying the geometrical shape of the QDs. These experiments show that thetuning of the QD confinement potential offers a powerful method to manipulateelectronic states and far-infrared inter-shell optical transitions in quantumdots.



Author: Achintya Singha, Vittorio Pellegrini, Sokratis Kalliakos, Biswajit Karmakar, Aron Pinczuk, Loren N. Pfeiffer, Ken W. West

Source: https://arxiv.org/







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