Polarized quantum dot emission from photonic crystal nanocavities studied under mode-resonant enhanced excitation

R. Oulton; B. D. Jones; S. Lam; A. R.A. Chalcraft; D. Szymanski; D. O'Brien; T. F. Krauss; D. Sanvitto; A. M. Fox; D. M. Whittaker; M. Hopkinson; M. S. Skolnick

doi:10.1364/OE.15.017221

Polarized quantum dot emission from photonic crystal nanocavities studied under mode-resonant enhanced excitation

R. Oulton^*, B. D. Jones, S. Lam, A. R.A. Chalcraft, D. Szymanski, D. O'Brien, T. F. Krauss, D. Sanvitto, A. M. Fox, D. M. Whittaker, M. Hopkinson, M. S. Skolnick

^*Corresponding author for this work

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

43 Citations (Scopus)

Abstract

We study the linear polarization of the emission from single quantum dots embedded in an "L3" defect nanocavity in a two-dimensional photonic crystal. By using narrow linewidth optical excitation in resonance with higher-order modes, we are able to achieve strong quantum dot emission intensity whilst reducing the background from quantum dots in the surrounding lattice. We find that all the dots observed emit very strongly linearly polarized light of the same orientation as the closest mode, despite the fact that these quantum dots may be spectrally detuned by several times the mode linewidth. We discuss the coupling mechanisms which may explain this behavior.

Original language	English
Pages (from-to)	17221-17230
Number of pages	10
Journal	Optics Express
Volume	15
Issue number	25
DOIs	https://doi.org/10.1364/OE.15.017221
Publication status	Published - 12 Dec 2007
Externally published	Yes

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Oulton, R., Jones, B. D., Lam, S., Chalcraft, A. R. A., Szymanski, D., O'Brien, D., Krauss, T. F., Sanvitto, D., Fox, A. M., Whittaker, D. M., Hopkinson, M., & Skolnick, M. S. (2007). Polarized quantum dot emission from photonic crystal nanocavities studied under mode-resonant enhanced excitation. Optics Express, 15(25), 17221-17230. https://doi.org/10.1364/OE.15.017221

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title = "Polarized quantum dot emission from photonic crystal nanocavities studied under mode-resonant enhanced excitation",

abstract = "We study the linear polarization of the emission from single quantum dots embedded in an {"}L3{"} defect nanocavity in a two-dimensional photonic crystal. By using narrow linewidth optical excitation in resonance with higher-order modes, we are able to achieve strong quantum dot emission intensity whilst reducing the background from quantum dots in the surrounding lattice. We find that all the dots observed emit very strongly linearly polarized light of the same orientation as the closest mode, despite the fact that these quantum dots may be spectrally detuned by several times the mode linewidth. We discuss the coupling mechanisms which may explain this behavior.",

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year = "2007",

month = dec,

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doi = "10.1364/OE.15.017221",

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T1 - Polarized quantum dot emission from photonic crystal nanocavities studied under mode-resonant enhanced excitation

AU - Oulton, R.

AU - Jones, B. D.

AU - Lam, S.

AU - Chalcraft, A. R.A.

AU - Szymanski, D.

AU - O'Brien, D.

AU - Krauss, T. F.

AU - Sanvitto, D.

AU - Fox, A. M.

AU - Whittaker, D. M.

AU - Hopkinson, M.

AU - Skolnick, M. S.

PY - 2007/12/12

Y1 - 2007/12/12

N2 - We study the linear polarization of the emission from single quantum dots embedded in an "L3" defect nanocavity in a two-dimensional photonic crystal. By using narrow linewidth optical excitation in resonance with higher-order modes, we are able to achieve strong quantum dot emission intensity whilst reducing the background from quantum dots in the surrounding lattice. We find that all the dots observed emit very strongly linearly polarized light of the same orientation as the closest mode, despite the fact that these quantum dots may be spectrally detuned by several times the mode linewidth. We discuss the coupling mechanisms which may explain this behavior.

AB - We study the linear polarization of the emission from single quantum dots embedded in an "L3" defect nanocavity in a two-dimensional photonic crystal. By using narrow linewidth optical excitation in resonance with higher-order modes, we are able to achieve strong quantum dot emission intensity whilst reducing the background from quantum dots in the surrounding lattice. We find that all the dots observed emit very strongly linearly polarized light of the same orientation as the closest mode, despite the fact that these quantum dots may be spectrally detuned by several times the mode linewidth. We discuss the coupling mechanisms which may explain this behavior.

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U2 - 10.1364/OE.15.017221

DO - 10.1364/OE.15.017221

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VL - 15

SP - 17221

EP - 17230

JO - Optics Express

JF - Optics Express

IS - 25

ER -

Polarized quantum dot emission from photonic crystal nanocavities studied under mode-resonant enhanced excitation

Abstract

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