Strongly nonexponential time-resolved fluorescence of quantum-dot ensembles in three-dimensional photonic crystals

I. Nikolaev, P. Lodahl, A. Floris van Driel, A.F. Koenderink, Willem L. Vos

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Abstract

We observe experimentally that ensembles of quantum dots in three-dimensional (3D) photonic crystals reveal strongly nonexponential time-resolved emission. These complex emission decay curves are analyzed with a continuous distribution of decay rates. The log-normal distribution describes the decays well for all studied lattice parameters. The distribution width is identified with variations of the radiative emission rates of quantum dots with various positions and dipole orientations in the unit cell. We find a striking sixfold change of the width of the distribution by varying the lattice parameter. This interpretation qualitatively agrees with the calculations of the 3D projected local density of states. We therefore conclude that fluorescence decay of ensembles of quantum dots is highly nonexponential to an extent that is controlled by photonic crystals.
Original languageUndefined
Article number115302
Pages (from-to)1-5
Number of pages5
JournalPhysical review B: Condensed matter and materials physics
Volume75
Issue number11
DOIs
Publication statusPublished - 2007

Keywords

  • METIS-239791
  • IR-59113

Cite this

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title = "Strongly nonexponential time-resolved fluorescence of quantum-dot ensembles in three-dimensional photonic crystals",
abstract = "We observe experimentally that ensembles of quantum dots in three-dimensional (3D) photonic crystals reveal strongly nonexponential time-resolved emission. These complex emission decay curves are analyzed with a continuous distribution of decay rates. The log-normal distribution describes the decays well for all studied lattice parameters. The distribution width is identified with variations of the radiative emission rates of quantum dots with various positions and dipole orientations in the unit cell. We find a striking sixfold change of the width of the distribution by varying the lattice parameter. This interpretation qualitatively agrees with the calculations of the 3D projected local density of states. We therefore conclude that fluorescence decay of ensembles of quantum dots is highly nonexponential to an extent that is controlled by photonic crystals.",
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author = "I. Nikolaev and P. Lodahl and {van Driel}, {A. Floris} and A.F. Koenderink and Vos, {Willem L.}",
year = "2007",
doi = "10.1103/PhysRevB.75.115302",
language = "Undefined",
volume = "75",
pages = "1--5",
journal = "Physical review B: Condensed matter and materials physics",
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Strongly nonexponential time-resolved fluorescence of quantum-dot ensembles in three-dimensional photonic crystals. / Nikolaev, I.; Lodahl, P.; van Driel, A. Floris; Koenderink, A.F.; Vos, Willem L.

In: Physical review B: Condensed matter and materials physics, Vol. 75, No. 11, 115302, 2007, p. 1-5.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Strongly nonexponential time-resolved fluorescence of quantum-dot ensembles in three-dimensional photonic crystals

AU - Nikolaev, I.

AU - Lodahl, P.

AU - van Driel, A. Floris

AU - Koenderink, A.F.

AU - Vos, Willem L.

PY - 2007

Y1 - 2007

N2 - We observe experimentally that ensembles of quantum dots in three-dimensional (3D) photonic crystals reveal strongly nonexponential time-resolved emission. These complex emission decay curves are analyzed with a continuous distribution of decay rates. The log-normal distribution describes the decays well for all studied lattice parameters. The distribution width is identified with variations of the radiative emission rates of quantum dots with various positions and dipole orientations in the unit cell. We find a striking sixfold change of the width of the distribution by varying the lattice parameter. This interpretation qualitatively agrees with the calculations of the 3D projected local density of states. We therefore conclude that fluorescence decay of ensembles of quantum dots is highly nonexponential to an extent that is controlled by photonic crystals.

AB - We observe experimentally that ensembles of quantum dots in three-dimensional (3D) photonic crystals reveal strongly nonexponential time-resolved emission. These complex emission decay curves are analyzed with a continuous distribution of decay rates. The log-normal distribution describes the decays well for all studied lattice parameters. The distribution width is identified with variations of the radiative emission rates of quantum dots with various positions and dipole orientations in the unit cell. We find a striking sixfold change of the width of the distribution by varying the lattice parameter. This interpretation qualitatively agrees with the calculations of the 3D projected local density of states. We therefore conclude that fluorescence decay of ensembles of quantum dots is highly nonexponential to an extent that is controlled by photonic crystals.

KW - METIS-239791

KW - IR-59113

U2 - 10.1103/PhysRevB.75.115302

DO - 10.1103/PhysRevB.75.115302

M3 - Article

VL - 75

SP - 1

EP - 5

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

SN - 1098-0121

IS - 11

M1 - 115302

ER -