Highly directional emission from a quantum emitter embedded in a hemispherical cavity

Y. Ma; Guillem Ballesteros-Garcia; J. M. Zajac; Jining Sun; B. D. Gerardot

doi:10.1364/OL.40.002373

Highly directional emission from a quantum emitter embedded in a hemispherical cavity

Y. Ma, Guillem Ballesteros-Garcia, J. M. Zajac, Jining Sun, B. D. Gerardot^*

^*Corresponding author for this work

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Abstract

We report the design of a solid-state, micron-sized hemispherical cavity that yields significantly enhanced extraction efficiency with modest Purcell enhancement from embedded quantum emitters. A simple analytical model provides a guideline for the design and optimization of the structure, while finite-difference time-domain simulations are used for full analysis of the optimum structure. Cavity modes with up to 90% extraction efficiency, a Purcell enhancement factor >2, and a quality factor of approximate to 50 are achieved. In addition, Gaussian-like far-field beam profiles with low divergence are exhibited for several modes. These monolithic cavities are promising for solid-state emitters buried in a high dielectric environment, such as self-assembled quantum dots and optically active defects in diamond. (C) 2015 Optical Society of America

Original language	English
Pages (from-to)	2373-2376
Number of pages	4
Journal	Optics Letters
Volume	40
Issue number	10
DOIs	https://doi.org/10.1364/OL.40.002373
Publication status	Published - 15 May 2015

Keywords

SOLID IMMERSION LENS
LIGHT EXTRACTION
REFRACTIVE-INDEX
MICROCAVITIES
FLUORESCENCE

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© 2015 Optical Society of America
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title = "Highly directional emission from a quantum emitter embedded in a hemispherical cavity",

abstract = "We report the design of a solid-state, micron-sized hemispherical cavity that yields significantly enhanced extraction efficiency with modest Purcell enhancement from embedded quantum emitters. A simple analytical model provides a guideline for the design and optimization of the structure, while finite-difference time-domain simulations are used for full analysis of the optimum structure. Cavity modes with up to 90\% extraction efficiency, a Purcell enhancement factor >2, and a quality factor of approximate to 50 are achieved. In addition, Gaussian-like far-field beam profiles with low divergence are exhibited for several modes. These monolithic cavities are promising for solid-state emitters buried in a high dielectric environment, such as self-assembled quantum dots and optically active defects in diamond. (C) 2015 Optical Society of America",

keywords = "SOLID IMMERSION LENS, LIGHT EXTRACTION, REFRACTIVE-INDEX, MICROCAVITIES, FLUORESCENCE",

author = "Y. Ma and Guillem Ballesteros-Garcia and Zajac, \{J. M.\} and Jining Sun and Gerardot, \{B. D.\}",

note = "{"}We acknowledge financial support from a Royal Society University Research Fellowship, the EPSRC (EP/I023186/1, EP/K015338/1, and EP/M013472/1), and an ERC Starting Grant (No. 307392).{"}",

year = "2015",

month = may,

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doi = "10.1364/OL.40.002373",

language = "English",

volume = "40",

pages = "2373--2376",

journal = "Optics Letters",

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AU - Ma, Y.

AU - Ballesteros-Garcia, Guillem

AU - Zajac, J. M.

AU - Sun, Jining

AU - Gerardot, B. D.

N1 - "We acknowledge financial support from a Royal Society University Research Fellowship, the EPSRC (EP/I023186/1, EP/K015338/1, and EP/M013472/1), and an ERC Starting Grant (No. 307392)."

PY - 2015/5/15

Y1 - 2015/5/15

N2 - We report the design of a solid-state, micron-sized hemispherical cavity that yields significantly enhanced extraction efficiency with modest Purcell enhancement from embedded quantum emitters. A simple analytical model provides a guideline for the design and optimization of the structure, while finite-difference time-domain simulations are used for full analysis of the optimum structure. Cavity modes with up to 90% extraction efficiency, a Purcell enhancement factor >2, and a quality factor of approximate to 50 are achieved. In addition, Gaussian-like far-field beam profiles with low divergence are exhibited for several modes. These monolithic cavities are promising for solid-state emitters buried in a high dielectric environment, such as self-assembled quantum dots and optically active defects in diamond. (C) 2015 Optical Society of America

AB - We report the design of a solid-state, micron-sized hemispherical cavity that yields significantly enhanced extraction efficiency with modest Purcell enhancement from embedded quantum emitters. A simple analytical model provides a guideline for the design and optimization of the structure, while finite-difference time-domain simulations are used for full analysis of the optimum structure. Cavity modes with up to 90% extraction efficiency, a Purcell enhancement factor >2, and a quality factor of approximate to 50 are achieved. In addition, Gaussian-like far-field beam profiles with low divergence are exhibited for several modes. These monolithic cavities are promising for solid-state emitters buried in a high dielectric environment, such as self-assembled quantum dots and optically active defects in diamond. (C) 2015 Optical Society of America

KW - SOLID IMMERSION LENS

KW - LIGHT EXTRACTION

KW - REFRACTIVE-INDEX

KW - MICROCAVITIES

KW - FLUORESCENCE

U2 - 10.1364/OL.40.002373

DO - 10.1364/OL.40.002373

M3 - Article

C2 - 26393743

SN - 0146-9592

VL - 40

SP - 2373

EP - 2376

JO - Optics Letters

JF - Optics Letters

IS - 10

ER -

Highly directional emission from a quantum emitter embedded in a hemispherical cavity

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Keywords

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