Strain-driven alignment of In nanocrystals on InGaAs quantum dot arrays and coupled plasmon-quantum dot emission

Urbanczyk, A.J.; Hamhuis, G. J.; Nötzel, R.

doi:10.1063/1.3358122

Cited by 21 publications

(22 citation statements)

References 15 publications

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“…Quantum interference between two cw Raman photons as high as 0.98 has also been reported [49]. In addition, hybrid complexes consisting of self-assembled QDs have been grown and covered with metal nanocrystals [52]. We would like to draw the attention to recent work where the controlled coupling of single QDs to a plasmonic nanoantenna has been demonstrated [10,11,[53][54][55][56].…”

Section: Discussionmentioning

confidence: 99%

Resonance fluorescence spectrum of aΛ-type quantum emitter close to a metallic nanoparticle

et al. 2016

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We theoretically study the resonance fluorescence spectrum of a three-level quantum emitter coupled to a spherical metallic nanoparticle. We consider the case that the quantum emitter is driven by a single laser field along one of the optical transitions. We show that the development of the spectrum depends on the relative orientation of the dipole moments of the optical transitions in relation to the metal nanoparticle. In addition, we demonstrate that the location and width of the peaks in the spectrum are strongly modified by the exciton-plasmon coupling and the laser detuning, allowing to achieve controlled strongly subnatural spectral line. A strong antibunching of the fluorescent photons along the undriven transition is also obtained. Our results may be used for creating a tunable source of photons which could be used for a probabilistic entanglement scheme in the field of quantum information processing.

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Section: Discussionmentioning

confidence: 99%

Resonance fluorescence spectrum of aΛ-type quantum emitter close to a metallic nanoparticle

et al. 2016

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“…Recently, hybrid structures consisting of self-assembled QDs has been grown and covered with metal nanocrystals [56]. In addition, we would like to draw the attention to very recent works where the controlled coupling of a single epitaxial QD to a plasmonic nanoantenna has been demonstrated [57,58].…”

Section: Discussionmentioning

confidence: 99%

Resonance fluorescence spectrum of ap-doped quantum dot coupled to a metallic nanoparticle

2013

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The resonance fluorescence spectrum (RFS) of a hybrid system consisting of a p-doped semiconductor quantum dot (QD) coupled to a metallic nanoparticle (MNP) is analyzed. The quantum dot is described as a four-level atom-like system using the density matrix formalism. The lower levels are Zeeman-split hole spin states and the upper levels correspond to positively charged excitons containing a spin-up, spin-down hole pair and a spin electron. A linearly polarized laser field drives two of the optical transitions of the QD and produces localized surface plasmons in the nanoparticle which act back upon the QD. The frequencies of these localized plasmons are very different along the two principal axes of the nanoparticle, thus producing an anisotropic modification of the spontaneous emission rates of the allowed optical transitions which is accompanied by very minor local field corrections. This manifests into dramatic modifications in the RFS of the hybrid system in contrast to the one obtained for the isolated QD. The RFS is analyzed as a function of the nanoparticle's aspect ratio, the external magnetic field applied in the Voigt geometry, and the Rabi frequency of the driving field. It is shown that the spin of the QD is imprinted onto certain sidebands of the RFS, and that the signal at these sidebands can be optimized by engineering the shape of the MNP.

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“…[5][6][7] We achieve this control by the self-alignment of epitaxial Ag nanocrystals on near-surface InAs/GaAs QDs grown by molecular beam epitaxy ͑MBE͒. This is the most significant advance compared to the previously demonstrated alignment of In nanocrystals 8 as Ag is the material of choice for plasmonics exhibiting the lowest resistive losses of all metals. Moreover, it reveals the generality of our concept of epitaxial self-alignment.…”

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confidence: 91%

Self-aligned epitaxial metal-semiconductor hybrid nanostructures for plasmonics

Urbanczyk

Otten

Nötzel

2011

Applied Physics Letters

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We demonstrate self-alignment of epitaxial Ag nanocrystals on top of low-density near-surface InAs quantum dots (QDs) grown by molecular beam epitaxy. The Ag nanocrystals support a surface plasmon resonance that can be tuned to the emission wavelength of the QDs. Photoluminescence measurements of such hybrid metal-semiconductor nanostructures reveal large enhancement of the emission intensity. Our concept of epitaxial self-alignment enables the integration of plasmonic functionality with electronic and photonic semiconductor devices operating down to the single QD level.

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Strain-driven alignment of In nanocrystals on InGaAs quantum dot arrays and coupled plasmon-quantum dot emission

Cited by 21 publications

References 15 publications

Resonance fluorescence spectrum of aΛ-type quantum emitter close to a metallic nanoparticle

Resonance fluorescence spectrum of aΛ-type quantum emitter close to a metallic nanoparticle

Resonance fluorescence spectrum of ap-doped quantum dot coupled to a metallic nanoparticle

Self-aligned epitaxial metal-semiconductor hybrid nanostructures for plasmonics

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