Anisotropic emission of interface fluctuation quantum dots

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

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)571-576
Number of pages6
JournalEuropean Physical Journal B
Volume27
Issue number4
DOIs
StatePublished - Jun 2 2002

Fingerprint

Semiconductor quantum dots
quantum dots
Dipole moment
dipole moments
radii
Spontaneous emission
concentrating
Electron energy levels
spontaneous emission
Semiconductor quantum wells
energy levels
quantum wells
Direction compound

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

Cite this

Anisotropic emission of interface fluctuation quantum dots. / Thränhardt, A.; Ell, C.; Khitrova, Galina; Gibbs, H. M.

In: European Physical Journal B, Vol. 27, No. 4, 02.06.2002, p. 571-576.

Research output: Contribution to journalArticle

Thränhardt, A. ; Ell, C. ; Khitrova, Galina ; Gibbs, H. M. / Anisotropic emission of interface fluctuation quantum dots. In: European Physical Journal B. 2002 ; Vol. 27, No. 4. pp. 571-576.
@article{aa1bef6e60fb481faf601196d1a67edc,
title = "Anisotropic emission of interface fluctuation quantum dots",
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.",
keywords = "78.60.-b Other luminescence and radiative recombination, 78.67.Hc Quantum dots, 78.70.-g Interactions of particles and radiation with matter",
author = "A. Thr{\"a}nhardt and C. Ell and Galina Khitrova and Gibbs, {H. M.}",
year = "2002",
month = "6",
day = "2",
doi = "10.1140/epjb/e2002-00191-0",
language = "English (US)",
volume = "27",
pages = "571--576",
journal = "European Physical Journal B",
issn = "1434-6028",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Anisotropic emission of interface fluctuation quantum dots

AU - Thränhardt, A.

AU - Ell, C.

AU - Khitrova, Galina

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

UR - http://www.scopus.com/inward/record.url?scp=19044386869&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=19044386869&partnerID=8YFLogxK

U2 - 10.1140/epjb/e2002-00191-0

DO - 10.1140/epjb/e2002-00191-0

M3 - Article

AN - SCOPUS:19044386869

VL - 27

SP - 571

EP - 576

JO - European Physical Journal B

JF - European Physical Journal B

SN - 1434-6028

IS - 4

ER -