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Your search keyword '"Doty, M F"' showing total 2 results
Start Over Author "Doty, M F" Publisher purdue university
2 results on '"Doty, M F"'

1. Polarized fine structure in the photoluminescence excitation spectrum of a negatively charged quantum dot

Author

Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., Korenev, V. L., Badescu, S. C., Lyanda-Geller, Y., Reinecke, T. L., Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., Korenev, V. L., Badescu, S. C., Lyanda-Geller, Y., and Reinecke, T. L.

Abstract

We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge-tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with polarized fine structure arising from the direct excitation of the electron spin triplet states. The energy splitting arises from the axially symmetric electron-hole exchange interaction. The magnitude and sign of the polarization are understood from the spin character of the triplet states and a small amount of quantum dot asymmetry, which mixes the wave functions through asymmetric e-e and e-h exchange interactions.

Published
2005

2. Polarized fine structure in the photoluminescence excitation spectrum of a negatively charged quantum dot

Author

Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., Korenev, V. L., Badescu, S. C., Lyanda-Geller, Y., Reinecke, T. L., Ware, M. E., Stinaff, E. A., Gammon, D., Doty, M. F., Bracker, A. S., Gershoni, D., Korenev, V. L., Badescu, S. C., Lyanda-Geller, Y., and Reinecke, T. L.

Abstract

We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge-tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with polarized fine structure arising from the direct excitation of the electron spin triplet states. The energy splitting arises from the axially symmetric electron-hole exchange interaction. The magnitude and sign of the polarization are understood from the spin character of the triplet states and a small amount of quantum dot asymmetry, which mixes the wave functions through asymmetric e-e and e-h exchange interactions.

Published
2005

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