Anisotropic emission of interface fluctuation quantum dots

A. Thränhardt; C. Ell; G. Khitrova; H. M. Gibbs

doi:10.1140/epjb/e2002-00191-0

Anisotropic emission of interface fluctuation quantum dots

A. Thränhardt, C. Ell, G. Khitrova, H. M. Gibbs

Optical Sciences, College of

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

3 Scopus citations

Abstract

We calculate energy levels, dipole moments and radiative broadening of interface fluctuation quantum dots. For optically allowed states, the dipole moment grows proportionally to the lateral quantum dot radius while the radiative broadening saturates towards the quantum well radiative broadening for large lateral quantum dot radii. This is accompanied by a change in the angular emission pattern, concentrating emission in forward and backward direction. Optically forbidden states do not couple to light propagating in the growth direction yet they may have a considerable radiative broadening due to spontaneous emission in other directions.

Original language	English (US)
Pages (from-to)	571-576
Number of pages	6
Journal	European Physical Journal B
Volume	27
Issue number	4
DOIs	https://doi.org/10.1140/epjb/e2002-00191-0
State	Published - Jun 2 2002

Keywords

78.60.-b Other luminescence and radiative recombination
78.67.Hc Quantum dots
78.70.-g Interactions of particles and radiation with matter

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "We calculate energy levels, dipole moments and radiative broadening of interface fluctuation quantum dots. For optically allowed states, the dipole moment grows proportionally to the lateral quantum dot radius while the radiative broadening saturates towards the quantum well radiative broadening for large lateral quantum dot radii. This is accompanied by a change in the angular emission pattern, concentrating emission in forward and backward direction. Optically forbidden states do not couple to light propagating in the growth direction yet they may have a considerable radiative broadening due to spontaneous emission in other directions.",

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year = "2002",

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T1 - Anisotropic emission of interface fluctuation quantum dots

AU - Thränhardt, A.

AU - Ell, C.

AU - Khitrova, G.

AU - Gibbs, H. M.

PY - 2002/6/2

Y1 - 2002/6/2

N2 - We calculate energy levels, dipole moments and radiative broadening of interface fluctuation quantum dots. For optically allowed states, the dipole moment grows proportionally to the lateral quantum dot radius while the radiative broadening saturates towards the quantum well radiative broadening for large lateral quantum dot radii. This is accompanied by a change in the angular emission pattern, concentrating emission in forward and backward direction. Optically forbidden states do not couple to light propagating in the growth direction yet they may have a considerable radiative broadening due to spontaneous emission in other directions.

AB - We calculate energy levels, dipole moments and radiative broadening of interface fluctuation quantum dots. For optically allowed states, the dipole moment grows proportionally to the lateral quantum dot radius while the radiative broadening saturates towards the quantum well radiative broadening for large lateral quantum dot radii. This is accompanied by a change in the angular emission pattern, concentrating emission in forward and backward direction. Optically forbidden states do not couple to light propagating in the growth direction yet they may have a considerable radiative broadening due to spontaneous emission in other directions.

KW - 78.60.-b Other luminescence and radiative recombination

KW - 78.67.Hc Quantum dots

KW - 78.70.-g Interactions of particles and radiation with matter

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DO - 10.1140/epjb/e2002-00191-0

M3 - Article

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VL - 27

SP - 571

EP - 576

JO - European Physical Journal B

JF - European Physical Journal B

IS - 4

ER -

Anisotropic emission of interface fluctuation quantum dots

Abstract

Keywords

ASJC Scopus subject areas

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