dorsal/arxiv
View SchemaControlling the Spontaneous Emission Rate of Single Quantum Dots in a 2D Photonic Crystal
| Authors | Dirk Englund, David Fattal, Edo Waks, Glenn Solomon, Bingyang Zhang, Toshihiro Nakaoka, Yasuhiko Arakawa, Yoshihisa Yamamoto, Jelena Vuckovic |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0501091 |
| URL | https://arxiv.org/abs/quant-ph/0501091 |
| DOI | 10.1103/PhysRevLett.95.013904 |
Abstract
We observe large spontaneous emission rate modification of individual InAs Quantum Dots (QDs) in 2D a photonic crystal with a modified, high-Q single defect cavity. Compared to QDs in bulk semiconductor, QDs that are resonant with the cavity show an emission rate increase by up to a factor of 8. In contrast, off-resonant QDs indicate up to five-fold rate quenching as the local density of optical states (LDOS) 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 pulse duration from 210 ps to 8 ns. We explain the suppression of QD emission rate using Finite Difference Time Domain (FDTD) simulations and find good agreement with experiment.
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"abstract": "We observe large spontaneous emission rate modification of individual InAs\nQuantum Dots (QDs) in 2D a photonic crystal with a modified, high-Q single\ndefect cavity. Compared to QDs in bulk semiconductor, QDs that are resonant\nwith the cavity show an emission rate increase by up to a factor of 8. In\ncontrast, off-resonant QDs indicate up to five-fold rate quenching as the local\ndensity of optical states (LDOS) is diminished in the photonic crystal. In both\ncases we demonstrate photon antibunching, showing that the structure represents\nan on-demand single photon source with pulse duration from 210 ps to 8 ns. We\nexplain the suppression of QD emission rate using Finite Difference Time Domain\n(FDTD) simulations and find good agreement with experiment.",
"arxiv_id": "quant-ph/0501091",
"authors": [
"Dirk Englund",
"David Fattal",
"Edo Waks",
"Glenn Solomon",
"Bingyang Zhang",
"Toshihiro Nakaoka",
"Yasuhiko Arakawa",
"Yoshihisa Yamamoto",
"Jelena Vuckovic"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.95.013904",
"title": "Controlling the Spontaneous Emission Rate of Single Quantum Dots in a 2D Photonic Crystal",
"url": "https://arxiv.org/abs/quant-ph/0501091"
},
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