Controlling the Spontaneous Emission Rate of Single Quantum Dots in a Two-Dimensional Photonic Crystal
Open accessAbstract
We observe large spontaneous emission rate modification of individual InAs quantum dots (QDs) in a 2D photonic crystal with a modified, high-Q single-defect cavity. Compared to QDs in a bulk semiconductor, QDs that are resonant with the cavity show an emission rate increase of up to a factor of 8. In contrast, off-resonant QDs indicate up to fivefold rate quenching as the local density of optical states is diminished in the photonic crystal. In both cases, we demonstrate photon antibunching, showing that the structure represents an on-demand single photon source with a pulse duration from 210 ps to 8 ns. We explain the suppression of QD emission rate using finite difference time domain simulations and find good agreement with experiment.
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Photon indistinguishability can be reduced by uncontrolled emission time jitter from nonradiative high-level to s-shell relaxation.
“and uncontrolled emission time jitter from the nonradiative high-level to s-shell relaxation [15].”
From On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar (2016) · cites this paper as [15]
The detrimental effect of time jitter can be more severe when using a QD-microcavity system where the Purcell-reduced radiative lifetime T1 is comparable to or smaller than the time jitter.
“The detrimental effect of the time jitter can be more severe when using a QD-microcavity system where the Purcell-reduced radiative lifetime (T 1 ) of the QD, which bounds the single photon's coherence time (T 2 ) by T 2 ≤ 2T 1 , is comparable to or smaller than the time jitter [15].”
From On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar (2016) · cites this paper as [15]
The pulsed RF technique is more critically needed for QDs with large Purcell factors where the reduced radiative lifetime approaches the time jitter.
“We note that the pulsed RF technique is more critically needed for QDs with large Purcell factors where the reduced radiative lifetime approaches the time jitter [11,15].”
From On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar (2016) · cites this paper as [15]
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- Authors
- Englund, D., Fattal, D., Waks, E., Solomon, G., Zhang, B., Nakaoka, T., Arakawa, Y., Yamamoto, Y., & Vučković, J.
- Affiliations
- Stanford University (US)
- Institute of Industrial Science, The University of Tokyo (JP)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2005-07
- Volume
- 95
- Issue
- 1
- Pages
- 013904-013904
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2594546544
- Cited by
- 985
- References
- 15
- Citations by year
- 2026: 15 · 2025: 25 · 2024: 29 · 2023: 42 · 2022: 27 · 2021: 34 · 2020: 34 · 2019: 48 · 2018: 53 · 2017: 49 · 2016: 50 · 2015: 47 · 2014: 59 · 2013: 51 · 2012: 52
- FWCI
- 39.61
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Photonic Crystals and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
- Keywords
- quantum dots, spontaneous emission rate, two-dimensional photonic crystals, InAs quantum dots, high-Q cavity, local density of optical states, photon antibunching, single-photon sources, finite-difference time-domain simulation
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