Controlling the spontaneous emission rate of single quantum dots in a 2D photonic crystal
By Dirk Englund, David Fattal, Edo Waks, G. Solomon, Bingyan Zhang, T. Nakaoka, Yasuhiko Arakawa, Yoshihisa Yamamoto, Jelena Vuckovic. SPIE Optics East, 2005
790 citations recorded by the source corpus.
We report on single photon sources produced from photonic crystal - coupled InAs Quantum Dots (QDs). We observe large spontaneous emission rate modification of individual InAs Quantum Dots (QDs) in modified single defect cavities with large quality factor (Q). 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. High multiphoton suppression is achieved by resonant excitation. Finally, we discuss fabrication improvements based on FDTD analysis of already fabricated structures.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/f9b5c08f77c3dd0e94810ed2755ad925e0b2be37
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In Atomic and Molecular Physics, and Optics
- Masaya Notomi
- Dirk Englund
- P. Lodahl
- Eiichi Kuramochi
- Andrew J. Shields
- Takasumi Tanabe
- Edo Waks
- Daniel Alonso
In Electrical and Electronic Engineering
- Masaya Notomi
- Dirk Englund
- Eiichi Kuramochi
- Takasumi Tanabe
- P. Lodahl
- Edo Waks
- Daniel Alonso
- G. Khitrova
Citations in the corpus
- Manipulating light with strongly modulated photonic crystals (2010, background): “Efficient single photon emission in photonic crystal nanocavities with single quantum dots has been reported by several institutes [131, 132].”
- Lasing in metallic-coated nanocavities (2007, background): “Furthermore, the spectral overlap of the emitter with the cavity resonance has to be considere”
- Dynamics of non-Markovian open quantum systems (2015, background): “…dots within photonic crystals has demonstrated that the spontaneous emission from light emitters embedded in photonic crystals is not only suppressed within the gap, but also enhanced in the direction where optical modes exist (Englund et al., 2005; Noda et al., 2007; Thompson et al., 2013).”
- Coherent Conversion Between Microwave and Optical Photons—An Overview of Physical Implementations (2019, neutral): “[51] D.”
- Large-scale arrays of ultrahigh-Q coupled nanocavities (2008, background): “In addition, if the individual cavity size becomes comparable to the optical wavelength, we can expect cavity quantum electrodynamics phenomen”