On-Chip Integrated Single Photon Source-Optically Resonant Metastructure Based Scalable Quantum Optical Circuits

Chattaraj, Swarnabha; Zhang, Jiefei; Lu, Siyuan; Madhukar, A.

doi:10.1109/jqe.2019.2952387

Cited by 2 publications

(10 citation statements)

References 32 publications

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“…These InGaAs MTSQDs were centered around 930nm and have a spectral uniformity (σλ) of 8nm -a factor of 5 improvement compared to the typically explored lattice-mismatch driven selfassembled quantum dots (SAQDs). More importantly, we showed that there are pairs of asgrown MTSQDs emitting within ~300 μeV of each other 13,16 . Such closely emitting pairs of QDs can be driven into resonance for the study of on-chip photon interference using well established electrical tuning 20,21 .…”

Section: Spectrally Ultra-uniform and Ultra-pure Single Photon Source...mentioning

confidence: 77%

“…Previously we have analyzed the potential of collective Mie-like resonances in all dielectric metastructures made of subwavelength-sized DBB arrays and demonstrated that a single collective spectral mode does provide--in different spatial regions of the DBB metastrucutre--the needed functions including enhancing the SPS emission rate, directing the mission, guiding the photons, beam splitting, and beam combining 12,15,16 . This eases the difficulty of mode-matching between different regions ("functional components") of the optical network.…”

Section: Buried Sps Arrays: a Platform For Quantum Optical Circuitsmentioning

confidence: 99%

“…1(b). The MTSQD is embedded in a cubic DBB of size 254nm which is a part of a Yagi-Uda antenna 16 . The larger DBB to the left is the reflector (size 254nm×288nm×254nm) and to the immediate right is the director (cube size 254nm) of the Yagi-Uda antenna.…”

Section: Buried Sps Arrays: a Platform For Quantum Optical Circuitsmentioning

confidence: 99%

“…Together, this opens the pathway to the fabrication of on-chip integrated QOCs. To this end, we also report here a design for the integration of such buried MTSQDs with the basic light manipulating building units of circuits which can control QD emission rate, direct and guide photon emission utilizing the collective Mie mode of dielectric building blocks (DBBs) 12,15,16 as schematically shown as transparent blocks in Fig. 1(f).…”

Section: Introductionmentioning

confidence: 99%

“…Panels (d) and (e) depict the evolution of the planarization GaAs overlayer growth on the MTSQD arrays such as shown in Panel (a). Panel (f) depicts the two approaches to integration of the needed emitted photon manipulation elements (cavity and waveguide) implemented via the conventional 2D photonic crystal approach or the new paradigm of exploiting the collective Mie-like resonances 15,16 of all dielectric metastructures. Two SPSs are depicted to emphasize the critical role of panel (e) in enabling creation inter-connected array of multiple SPSs in a horizontal architecture that constitute quantum optical circuits.…”

Section: Introductionmentioning

confidence: 99%

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Planarized spatially-regular arrays of spectrally uniform single quantum dots as on-chip single photon sources for quantum optical circuits

et al. 2020

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A long standing obstacle to realizing highly sought on-chip monolithic solid state quantum optical circuits has been the lack of a starting platform comprising buried (protected) scalable spatially ordered and spectrally uniform arrays of on-demand single photon sources (SPSs). In this paper we report the first realization of such SPS arrays based upon a class of single quantum dots (SQDs) with single photon emission purity > 99.5% and uniformity < 2nm. Such SQD synthesis approach offers rich flexibility in material combinations and thus can cover the emission wavelength regime from long-to mid-to near-infrared to the visible and ultraviolet. The buried array of SQDs naturally lend themselves to the fabrication of quantum optical circuits employing either the well-developed photonic 2D crystal platform or the use of Mie-like collective resonance of all-dielectric building block based metastructures designed for directed emission and manipulation of the emitted photons in the horizontal planar architecture inherent to on-chip optical circuits. Finite element method-based simulations of the Mie-resonance based manipulation of the emitted light are presented showing achievement of simultaneous multifunctional manipulation of photons with large spectral bandwidth of ~ 20nm that eases spectral and mode matching. Our combined experimental and simulation findings presented here open the pathway for fabrication and study of on-chip quantum optical circuits.

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Section: Spectrally Ultra-uniform and Ultra-pure Single Photon Source...mentioning

confidence: 77%

Section: Buried Sps Arrays: a Platform For Quantum Optical Circuitsmentioning

confidence: 99%

Section: Buried Sps Arrays: a Platform For Quantum Optical Circuitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Planarized spatially-regular arrays of spectrally uniform single quantum dots as on-chip single photon sources for quantum optical circuits

et al. 2020

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On-chip scalable highly pure and indistinguishable single-photon sources in ordered arrays: Path to quantum optical circuits

et al. 2022

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Realization of quantum optical circuits is at the heart of quantum photonic information processing. A long-standing obstacle, however, has been the absence of a suitable platform of single photon sources (SPSs). Such SPSs need to be in spatially ordered arrays and produce, on-demand, highly pure, and indistinguishable single photons with sufficiently uniform emission characteristics to enable controlled interference between photons from distinct sources underpinning functional quantum optical networks. We report on such a platform of SPSs based on a unique class of epitaxial quantum dots dubbed mesa-top single quantum dot. Under resonant excitation, the spatially ordered SPSs (without Purcell enhancement) show single photon purity of >99% [ g (2) (0) ~ 0.015], high two-photon Hong-Ou-Mandel interference visibilities of 0.82 ± 0.03 (at 11.5 kelvin, without cavity), and spectral nonuniformity of <3 nanometers, within established locally tunable technology. Our platform of SPSs paves the path to creating on-chip scalable quantum photonic networks for communication, computation, simulation, sensing and imaging.

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On-Chip Integrated Single Photon Source-Optically Resonant Metastructure Based Scalable Quantum Optical Circuits

Cited by 2 publications

References 32 publications

Planarized spatially-regular arrays of spectrally uniform single quantum dots as on-chip single photon sources for quantum optical circuits

Planarized spatially-regular arrays of spectrally uniform single quantum dots as on-chip single photon sources for quantum optical circuits

On-chip scalable highly pure and indistinguishable single-photon sources in ordered arrays: Path to quantum optical circuits

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