Hybrid Quantum Nanophotonics—Interfacing Color Center in Nanodiamonds with $$\textrm{Si}_3\textrm{N}_4$$-Photonics

Kubanek, Alexander; Ovvyan, Anna P.; Antoniuk, Lukas; Lettner, Niklas; Pernice, Wolfram H. P.

doi:10.1007/978-3-031-16518-4_5

Cited by 5 publications

(8 citation statements)

References 126 publications

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“…The increase in coupling strength is further verified by comparing the spectral linewidths, while mitigating power-broadening effects. For the II mode, we see a linewidth increase of Δ 1→3 = 60 (7) to δ 0,Pos.3 = 218(6) MHz. The coupling term corresponding to the detuning between the optical transition frequency of the SiV − -center and the resonance frequency of the cavity mode is controlled within 99% of the maximum possible coupling strength.…”

Section: ■ Conclusionmentioning

confidence: 84%

“…Hybrid quantum photonics with color centers in a nanodiamond (ND) , enables to separately optimize the spin system, here a negatively charged silicon vacancy center (SiV – -center) in a ND, and the photonics platform, namely, PCCs in Si 3 N 4 -photonics. In a final step, referred to as quantum post-processing (QPP), both entities are connected by means of optical coupling. Importantly, high-throughput integration processes are being developed to enable large-scale hybrid quantum photonic devices with simultaneous, multichannel access, and heterogeneous integration based on, for example, standard CMOS foundry processes .…”

Section: Introductionmentioning

confidence: 99%

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Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics

Lettner,

Antoniuk,

Ovvyan

et al. 2024

ACS Photonics

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Nanophotonic quantum devices can significantly boost light−matter interaction, which is important for applications such as quantum networks. Reaching a high interaction strength between an optical transition of a spin system and a single mode of light is an essential step that demands precise control over all degrees of freedom of the optical coupling. While current devices have reached a high accuracy of emitter positioning, the placement process remains overall statistically, reducing the device fabrication yield. Furthermore, not all degrees of freedom of the optical coupling can be controlled, limiting the device performance. Here, we develop a hybrid approach based on negatively charged silicon vacancy center in nanodiamonds coupled to a mode of a Si 3 N 4photonic crystal cavity, where all terms of the coupling strength can be controlled individually. We used the frequency of coherent Rabi oscillations and line-broadening as a measure of the device performance. This allows for iterative optimization of the position and rotation of the dipole with respect to individual preselected modes of light. Therefore, our work marks an important step for optimization of hybrid quantum photonics and enables us to align device simulations with real device performance.

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Section: ■ Conclusionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics

Lettner,

Antoniuk,

Ovvyan

et al. 2024

ACS Photonics

Self Cite

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“…Quantum networks and repeaters [61] Hybrid system TFLN/Si 1550 nm High A thin-film lithium niobate on silicon photonics.…”

Section: Quantum Photonic-enhanced Sensing and Imagingmentioning

confidence: 99%

Exploring Trends and Opportunities in Quantum‐Enhanced Advanced Photonic Illumination Technologies

Taha,

Addie,

Haider

et al. 2024

Adv Quantum Tech

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The development of quantum‐enabled photonic technologies has opened new avenues for advanced illumination across diverse fields, including sensing, computing, materials, and integration. This review highlights how Quantum‐enhanced sensing and imaging exploit nonclassical correlations to attain unprecedented accuracy in chaotic environments. As well as guaranteeing secure communications, quantum cryptography, protected by physical principles, ensures unbreakable cryptographic key exchange. As quantum computing speed increases exponentially, previously unimplementable uses for classical computers become feasible. On‐chip integration enables the mass production of quantum photonic components for pervasive applications by facilitating miniaturization and scalability. A powerful and flexible platform is produced when classical and quantum systems are combined. Quantum spin liquids and other topological materials can maintain their quantum states while subject to decoherence. Despite challenges with decoherence, production, and commercialization, quantum photonics is an exciting new area of study that promises lighting techniques impossible with conventional optics. To realize this promise, researchers from several fields must work together to solve complex technical problems and decode fundamental physics. Finally, advances in quantum‐enabled photonics have the potential to evolve quantum photonic devices and cutting‐edge imaging methods and usher in a new age of lighting options based on quantum dots.

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“…44 Furthermore, the small size enables precise atomic force microscope (AFM) -based nanomanipulation which opens the way for fabrication of hybrid quantum photonic devices. 45,46 For Placing the NDs at the center of the bullseye nanoantennas we used the pick and place method which benefits from a high accuracy of ∼ 10 nm. The central hole in the bullseye structure eases the placement of the ND due to its topology.…”

Section: Fabrication and Characterization Of A Device Based On Siv Ce...mentioning

confidence: 99%

Room Temperature Fiber-Coupled single-photon devices based on Colloidal Quantum Dots and SiV centers in Back Excited Nanoantennas

Lubotzky¹,

Nazarov²,

Abudayyeh³

et al. 2023

Preprint

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We demonstrate an important step towards on-chip integration of single-photon sources operating at room temperature-fiber coupling of a directional quantum emitter with backexcitation. Directionality is achieved with a hybrid metal-dielectric bullseye antenna, while back-excitation is permitted by placement of the emitter at or in a sub-wavelength hole positioned at the bullseye center. Overall, the unique design enables a direct laser excitation from the back of the on-chip device and very efficient coupling of the highly collimated photon emission to either low numerical aperture (NA) free-space optics or directly to an optical fiber from the front. To show the versatility of the concept, we fabricate devices containing either a colloidal quantum dot or a silicon-vacancy center containing nanodiamond, which are accurately coupled to the nano-antenna using two different nano-positioning methods. Both back-excited devices display front collection efficiencies of ∼70% at NAs as low as 0.5. Moreover, the combination of back-excitation with forward low-NA directionality enables direct coupling of the emitted photons into a proximal optical fiber without the need of any coupling optics, thereby facilitating and greatly simplifying future integration.

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Hybrid Quantum Nanophotonics—Interfacing Color Center in Nanodiamonds with $$\textrm{Si}_3\textrm{N}_4$$-Photonics

Cited by 5 publications

References 126 publications

Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics

Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics

Exploring Trends and Opportunities in Quantum‐Enhanced Advanced Photonic Illumination Technologies

Room Temperature Fiber-Coupled single-photon devices based on Colloidal Quantum Dots and SiV centers in Back Excited Nanoantennas

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