Measurement of optical absorption by a single quantum dot exciton

J. R. Guest; T. H. Stievater; Xiaoqin Li; Jun Cheng; D. G. Steel; D. Gammon; D. S. Katzer; D. Park; C. Ell; A. Thränhardt; G. Khitrova; H. M. Gibbs

doi:10.1103/PhysRevB.65.241310

Measurement of optical absorption by a single quantum dot exciton

J. R. Guest, T. H. Stievater, Xiaoqin Li, Jun Cheng, D. G. Steel, D. Gammon, D. S. Katzer, D. Park, C. Ell, A. Thränhardt, G. Khitrova, H. M. Gibbs

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

125 Scopus citations

Abstract

We have measured the optical absorption due to an exciton confined to a single interface fluctuation quantum dot by directly measuring the transmission through both a submicron aperture and near-field microscopy. The measurements reveal large dipole moments approaching 100 D at 6 K. These results are compared to theoretical predictions based on a physical size estimated from photoluminescence excitation spectroscopy. The very large dipole moment makes these quantum dots attractive candidates for use in microcavities and quantum logic gates.

Original language	English (US)
Article number	241310
Pages (from-to)	2413101-2413104
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.65.241310
State	Published - Jun 15 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.65.241310

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abstract = "We have measured the optical absorption due to an exciton confined to a single interface fluctuation quantum dot by directly measuring the transmission through both a submicron aperture and near-field microscopy. The measurements reveal large dipole moments approaching 100 D at 6 K. These results are compared to theoretical predictions based on a physical size estimated from photoluminescence excitation spectroscopy. The very large dipole moment makes these quantum dots attractive candidates for use in microcavities and quantum logic gates.",

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AU - Guest, J. R.

AU - Stievater, T. H.

AU - Li, Xiaoqin

AU - Cheng, Jun

AU - Steel, D. G.

AU - Gammon, D.

AU - Katzer, D. S.

AU - Park, D.

AU - Ell, C.

AU - Thränhardt, A.

AU - Khitrova, G.

AU - Gibbs, H. M.

PY - 2002/6/15

Y1 - 2002/6/15

N2 - We have measured the optical absorption due to an exciton confined to a single interface fluctuation quantum dot by directly measuring the transmission through both a submicron aperture and near-field microscopy. The measurements reveal large dipole moments approaching 100 D at 6 K. These results are compared to theoretical predictions based on a physical size estimated from photoluminescence excitation spectroscopy. The very large dipole moment makes these quantum dots attractive candidates for use in microcavities and quantum logic gates.

AB - We have measured the optical absorption due to an exciton confined to a single interface fluctuation quantum dot by directly measuring the transmission through both a submicron aperture and near-field microscopy. The measurements reveal large dipole moments approaching 100 D at 6 K. These results are compared to theoretical predictions based on a physical size estimated from photoluminescence excitation spectroscopy. The very large dipole moment makes these quantum dots attractive candidates for use in microcavities and quantum logic gates.

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Measurement of optical absorption by a single quantum dot exciton

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