Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer

Coles, R. J.; Price, D. M.; Dixon, J. B.; Royall, B.; Clarke, Edmund M.; Kok, Pieter; Skolnick, M. S.; Fox, A. M.; Makhonin, M. N.

doi:10.1038/ncomms11183

Cited by 275 publications

(287 citation statements)

References 29 publications

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“…The associated directional coupling has been observed experimentally in both dielectric [21][22][23][24][25][26][27][28][29][30][31] and plasmonic nanostructures [32][33][34][35] by coupling both classical [24-26, 30, 32-35] and quantum [21-23, 27-29, 31] emitters to the confined light fields. The robustness of the chiral points against unavoidable fabrication imperfections in photonic-crystal waveguides has been assessed [31,36] and chiral coupling is a well characterized and robust phenomenon, which is readily implementable in a range of applications. Figure 3 presents a selection of nanophotonic devices featuring chiral coupling, including atoms in the vicinity of tapered optical fibers and microresonators (Fig.…”

Section: Physics Of Nanophotonic Devicesmentioning

confidence: 99%

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Chiral quantum optics

Lodahl¹,

Mahmoodian²,

Stobbe³

et al. 2017

Nature

1,340

1,178

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At the most fundamental level, the interaction between light and matter is manifested by the emission and absorption of single photons by single quantum emitters. Controlling light-matter interaction is the basis for diverse applications ranging from light technology to quantum-information processing. Many of these applications are nowadays based on photonic nanostructures strongly benefitting from their scalability and integrability. The confinement of light in such nanostructures imposes an inherent link between the local polarization and propagation direction of light. This leads to chiral light-matter interaction, i.e., the emission and absorption of photons depend on the propagation direction and local polarization of light as well as the polarization of the emitter transition. The burgeoning research field of chiral quantum optics offers fundamentally new functionalities and applications both for single emitters and ensembles thereof. For instance, a chiral light-matter interface enables the realization of integrated non-reciprocal single-photon devices and deterministic spin-photon interfaces. Moreover, engineering directional photonic reservoirs opens new avenues for constructing complex quantum circuits and networks, which may be applied to simulate a new class of quantum many-body systems.

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Section: Physics Of Nanophotonic Devicesmentioning

confidence: 99%

“…5 a for a photonic-crystal waveguide. Directional emission has been observed experimentally with a range of different types of emitters embedded in various photonic nanostructures [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Section: Chiral Light-matter Interactionmentioning

confidence: 99%

Chiral quantum optics

Lodahl¹,

Mahmoodian²,

Stobbe³

et al. 2017

Nature

1,340

1,178

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“…This could be achieved by unidirectional couplers in the laboratory or, as already commented in Part I 5 , by using chiral waveguides to assemble the whole architecture compactly on the same chip. 52,53 It could also be possible to use a highy directional source of excitations. 54 A schematic representation is shown in Fig.…”

Section: A Driving the Cascaded Spsmentioning

confidence: 99%

Excitation with quantum light. II. Exciting a two-level system

et al. 2016

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We study the excitation of a two-level system (2LS) by quantum light, thereby bringing our previous studies (see part I. of this series) to a target that is quantum itself. While there is no gain for the quantum state of the target as compared to driving it with classical light, its dynamical features, such as antibunching, can be improved. We propose a chain of two-level systems, i.e., setting the emission of each 2LS as the driving source of the following one, as an arrangement to provide better single-photon sources. At a fundamental level, we discuss the notion of strongcoupling between quantum light from a source and its target, and the several versions of the Mollow triplet that follow from various types of driving light. We discuss the Heitler effect of antibunched photons from the scattered light off a laser.

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“…For the optimized design in Supplementary Note 6, efficiency > 90 % could potentially be achieved. We note that the source here is symmetric, so emission is in either ±z direction; unidirectional emission can potentially be implemented with an end-mirror or through chiral coupling [30][31][32] . We furthermore emphasize that the light-matter interaction geometry can take the form of any waveguide-based geometry, such as 1D photonic crystal cavities, or waveguide-coupled microring or microdisk resonators (see below and Supplementary Note 7 for examples), which may provide high β through Purcell enhancement.…”

Section: Resultsmentioning

confidence: 99%

A heterogeneous III-V / Si3N4 quantum photonic integration platform

Davanço

Liu

Sapienza

et al. 2017

Quantum Information and Measurement (QIM) 2017

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Single quantum emitters are an important resource for photonic quantum technologies, constituting building blocks for single-photon sources, stationary qubits, and deterministic quantum gates. Robust implementation of such functions is achieved through systems that provide both strong light-matter interactions and a low-loss interface between emitters and optical fields. Existing platforms providing such functionality at the single-node level present steep scalability challenges. Here, we develop a heterogeneous photonic integration platform that provides such capabilities in a scalable on-chip implementation, allowing direct integration of GaAs waveguides and cavities containing self-assembled InAs/GaAs quantum dots -a mature class of solidstate quantum emitter -with low-loss Si 3 N 4 waveguides. We demonstrate a highly efficient optical interface between Si 3 N 4 waveguides and single quantum dots in GaAs geometries, with performance approaching that of devices optimized for each material individually. This includes quantum dot radiative rate enhancement in microcavities, and a path for reaching the non-perturbative strong coupling regime.

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Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer

Cited by 275 publications

References 29 publications

Chiral quantum optics

Chiral quantum optics

Excitation with quantum light. II. Exciting a two-level system

A heterogeneous III-V / Si3N4 quantum photonic integration platform

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