Spontaneous emission control of single quantum dots by electromechanical tuning of a photonic crystal cavity

L. Midolo; F.M. Pagliano; T.B. Hoang; T. Xia; F.W.M. Otten, van; L.H. Li; E.H. Linfield; M. Lermer; S. Höfling; A. Fiore

doi:10.1063/1.4748302

Spontaneous emission control of single quantum dots by electromechanical tuning of a photonic crystal cavity

L. Midolo, F.M. Pagliano, T.B. Hoang, T. Xia, F.W.M. Otten, van, L.H. Li, E.H. Linfield, M. Lermer, S. Höfling, A. Fiore

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Abstract

We demonstrate the control of the spontaneous emission rate of single InAs quantum dots embedded in a double-membrane photonic crystal cavity by the electromechanical tuning of the cavity resonance. Controlling the separation between the two membranes with an electrostatic field, we obtain the real-time spectral alignment of the cavity mode to the excitonic line and we observe an enhancement of the spontaneous emission rate at resonance. The cavity has been tuned over 13 nm without shifting the exciton energies. A spontaneous emission enhancement of 4:5 has been achieved with a coupling efficiency of the dot to the mode b 92%.

Original language	English
Article number	091106
Pages (from-to)	091106-1/4
Number of pages	4
Journal	Applied Physics Letters
Volume	101
Issue number	9
DOIs	https://doi.org/10.1063/1.4748302
Publication status	Published - 2012

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title = "Spontaneous emission control of single quantum dots by electromechanical tuning of a photonic crystal cavity",

abstract = "We demonstrate the control of the spontaneous emission rate of single InAs quantum dots embedded in a double-membrane photonic crystal cavity by the electromechanical tuning of the cavity resonance. Controlling the separation between the two membranes with an electrostatic field, we obtain the real-time spectral alignment of the cavity mode to the excitonic line and we observe an enhancement of the spontaneous emission rate at resonance. The cavity has been tuned over 13 nm without shifting the exciton energies. A spontaneous emission enhancement of 4:5 has been achieved with a coupling efficiency of the dot to the mode b 92%.",

author = "L. Midolo and F.M. Pagliano and T.B. Hoang and T. Xia and {Otten, van}, F.W.M. and L.H. Li and E.H. Linfield and M. Lermer and S. H{\"o}fling and A. Fiore",

year = "2012",

doi = "10.1063/1.4748302",

language = "English",

volume = "101",

pages = "091106--1/4",

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T1 - Spontaneous emission control of single quantum dots by electromechanical tuning of a photonic crystal cavity

AU - Midolo, L.

AU - Pagliano, F.M.

AU - Hoang, T.B.

AU - Xia, T.

AU - Otten, van, F.W.M.

AU - Li, L.H.

AU - Linfield, E.H.

AU - Lermer, M.

AU - Höfling, S.

AU - Fiore, A.

PY - 2012

Y1 - 2012

N2 - We demonstrate the control of the spontaneous emission rate of single InAs quantum dots embedded in a double-membrane photonic crystal cavity by the electromechanical tuning of the cavity resonance. Controlling the separation between the two membranes with an electrostatic field, we obtain the real-time spectral alignment of the cavity mode to the excitonic line and we observe an enhancement of the spontaneous emission rate at resonance. The cavity has been tuned over 13 nm without shifting the exciton energies. A spontaneous emission enhancement of 4:5 has been achieved with a coupling efficiency of the dot to the mode b 92%.

AB - We demonstrate the control of the spontaneous emission rate of single InAs quantum dots embedded in a double-membrane photonic crystal cavity by the electromechanical tuning of the cavity resonance. Controlling the separation between the two membranes with an electrostatic field, we obtain the real-time spectral alignment of the cavity mode to the excitonic line and we observe an enhancement of the spontaneous emission rate at resonance. The cavity has been tuned over 13 nm without shifting the exciton energies. A spontaneous emission enhancement of 4:5 has been achieved with a coupling efficiency of the dot to the mode b 92%.

U2 - 10.1063/1.4748302

DO - 10.1063/1.4748302

M3 - Article

SN - 0003-6951

VL - 101

SP - 091106-1/4

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

M1 - 091106

ER -

Spontaneous emission control of single quantum dots by electromechanical tuning of a photonic crystal cavity

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