Heterogeneous integrated quantum photonic devices with single, deterministically positioned InAs quantum dots

Schnauber, Peter; Singh, Anshuman; Schall, Johannes; Song, Jin Dong; Rodt, Sven; Srinivasan, Kartik; Reitzenstein, Stephan; Davanço, Marcelo

doi:10.1364/cleo_si.2019.stu4j.6

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…Further, even before post‐growth techniques for spatial and spectral quantum dot control are applied, the search and identification, within a large as‐grown population, of individual QDs that offer desirable characteristics will likely remain a crucial aspect of quantum dot device fabrication. Whereas single QD search and identification is already carried out in the various types of quantum dot positioning setups developed for deterministic single QD device fabrication, achieving scalability in QD device fabrication will likely require not only automation, but also high‐throughput spectral and quantum optical (i.e., single‐photon purity, indistinguishability, level of entanglement, etc.) characterization of large numbers of individual dots within a grown ensemble.…”

Section: Discussionmentioning

confidence: 99%

“…Careful consideration must be paid to design and fabrication of the photonic structure, so that the geometry and the necessary fabrication process minimally affects the as‐grown quantum dot optical properties. In particular, the close proximity of QDs to etched surfaces has been shown to induce significant linewidth broadening, and therefore coherence degradation, of QD transitions . In view of the necessity to adjust QD spectral properties, photonic design must accommodate QD tuning and stabilization methods, such as through mechanical strain and the DC Stark tuning; or, conversely, special consideration must be taken when implementing such tuning techniques against devices produced on a chip, so that photonic performance is minimally affected.…”

Section: Discussionmentioning

confidence: 99%

“…The careful photonic design will also likely be necessary for the on‐chip implementation of the advanced optical pumping schemes described in Section 4, which aim at the production of perfectly indistinguishable photons. For instance, resonant pumping, via a free‐space beam, of a QD embedded in a photonic circuit may lead to considerable scatter of the resonant pump light into the same waveguide into which resonance fluorescence photons are produced . Alternative geometrical configurations for pumping and pump filtering will likely have to be considered, alongside the abovementioned QD control features.…”

Section: Discussionmentioning

confidence: 99%

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Advanced Technologies for Quantum Photonic Devices Based on Epitaxial Quantum Dots

Zhao

Chen

et al. 2019

Adv Quantum Tech

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Quantum photonic devices are candidates for realizing practical quantum computers and networks. The development of integrated quantum photonic devices can greatly benefit from the ability to incorporate different types of materials with complementary, superior optical or electrical properties on a single chip. Semiconductor quantum dots (QDs) serve as a core element in the emerging modern photonic quantum technologies by allowing on‐demand generation of single‐photons and entangled photon pairs. During each excitation cycle, there is one and only one emitted photon or photon pair. QD photonic devices are on the verge of unfolding for advanced quantum technology applications. This review is focused on the latest significant progress of QD photonic devices. First, advanced technologies in QD growth are discussed, with special attention to droplet epitaxy and site‐controlled QDs. Then, the wavelength engineering of QDs via strain tuning and quantum frequency conversion techniques is overviewed. The discussion is extended to advanced optical excitation techniques recently developed for achieving the desired emission properties of QDs. Finally, the advances in heterogeneous integration of active quantum light‐emitting devices and passive integrated photonic circuits are reviewed, in the context of realizing scalable quantum information processing chips.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Advanced Technologies for Quantum Photonic Devices Based on Epitaxial Quantum Dots

Zhao

Chen

et al. 2019

Adv Quantum Tech

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“…Furthermore, nanowires with integrated single QDs have also been deterministically integrated in silicon-based photonic waveguides combining pick-and-place and waveguide processing [127] (see figure 5 (c)). Moreover, the deterministic fabrication of hybrid GaAs/Si 3 N 4 waveguide devices with integrated pre-selected QDs (see figure 5 (d)) was recently demonstrated by Schnauber et al in an all-lithography-based approach [128], i.e. without requiring pick-and-place.…”

Section: Hybrid Approachesmentioning

confidence: 96%

Deterministically fabricated solid-state quantum-light sources

Rodt

Reitzenstein

Heindel

2020

J. Phys.: Condens. Matter

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The controlled generation of non-classical states of light is a challenging task at the heart of quantum optics. Aside from the mere spirit of science, the related research is strongly driven by applications in photonic quantum technologies, including the fields of quantum communication, quantum computation, and quantum metrology. In this context, the realization of integrated solid-state-based quantum-light sources is of particular interest, due to the prospects for scalability and device integration.This topical review focuses on solid-state quantum-light sources which are fabricated in a deterministic fashion. In this framework we cover quantum emitters represented by semiconductor quantum dots, colour centres in diamond, and defect-/strain-centres in two-dimensional materials. First, we introduce the topic of quantumlight sources and non-classical light generation for applications in photonic quantum technologies, motivating the need for the development of scalable device technologies to push the field to real-world applications. In the second part, we summarize material systems hosting quantum emitters in the solid-state. The third part reviews deterministic fabrication techniques and comparatively discusses their advantages and disadvantages. The techniques are classified in bottom-up approaches, exploiting the site-controlled positioning of the quantum emitters themselves, and top-down approaches, allowing for the precise alignment of photonic microstructures to preselected quantum emitters. Special emphasis is put on the progress achieved in the development of in-situ techniques, which significantly pushed the performance of quantum-light sources towards applications. Additionally we discuss hybrid approaches, exploiting pick-and-place techniques or wafer-bonding. The fourth part presents state-of-the-art quantum-dot quantum-light sources based on the fabrication techniques presented in the previous sections, which feature engineered functionality and enhanced photon collection efficiency. The article closes by highlighting recent applications of deterministic solid-state-based quantum-light sources in the fields of quantum communication, quantum computing, and quantum metrology, and discussing future perspectives in the field of solid-state quantum-light sources.

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“…Since the wafer-bonding method integrates two platforms on a wafer scale, without precise control of the position and frequency of the individual emitters, the actual coupling efficiency and yield remain low. However, recently developed techniques for site-controlled emitters [44,45], in-situ lithography [95,96], and local frequency tuning [46,62,97] may provide possible solutions for these issues. Figure 5(c) shows that the position of the quantum emitters in the bonded wafer is pre-defined by cathode luminescence in scanning electron microscopy, and the device is fabricated by in-situ electron beam lithography technique.…”

Section: Wafer-bondingmentioning

confidence: 99%

Hybrid integration methods for on-chip quantum photonics

Kim

Aghaeimeibodi

Carolan

et al. 2020

Optica

198

181

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The goal of integrated quantum photonics is to combine components for the generation, manipulation, and detection of non-classical light in a phase stable and efficient platform. Solid-state quantum emitters have recently reached outstanding performance as single photon sources. In parallel, photonic integrated circuits have been advanced to the point that thousands of components can be controlled on a chip with high efficiency and phase stability. Consequently, researchers are now beginning to combine these leading quantum emitters and photonic integrated circuit platforms to realize the best properties of each technology. In this article, we review recent advances in integrated quantum photonics based on such hybrid systems. Although hybrid integration solves many limitations of individual platforms, it also introduces new challenges that arise from interfacing different materials. We review various issues in solid-state quantum emitters and photonic integrated circuits, the hybrid integration techniques that bridge these two systems, and methods for chip-based manipulation of photons and emitters. Finally, we discuss the remaining challenges and future prospects of on-chip quantum photonics with integrated quantum emitters. PHOTONIC INTEGRATED CIRCUIETS FOR QUANTUM PHOTONICSPICs provide a compact, phase stable, and high-bandwidth platform to transmit, manipulate, and detect light on-chip. By leveraging advances in semiconductor manufacturing for classical communication, PICs have been demonstrated with over a thousand active components in a few square mm [50]. Now, with many foundries offering multi-26. I. Aharonovich, D. Englund, and M. Toth, "Solid-state single-photon emitters," Nat. Photonics 10, 631 (2016) , "Neardeterministic activation of room-temperature quantum emitters in hexagonal boron nitride," Optica 5, 1128-1134 (2018)

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Heterogeneous integrated quantum photonic devices with single, deterministically positioned InAs quantum dots

Cited by 3 publications

References 8 publications

Advanced Technologies for Quantum Photonic Devices Based on Epitaxial Quantum Dots

Advanced Technologies for Quantum Photonic Devices Based on Epitaxial Quantum Dots

Deterministically fabricated solid-state quantum-light sources

Hybrid integration methods for on-chip quantum photonics

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