Search Results - "Pregnolato, Tommaso"
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1
Deterministic photon–emitter coupling in chiral photonic circuits
Published in Nature nanotechnology (01-09-2015)“…The direction of a single photon emitted from a quantum emitter, and its coupling to a photon waveguide, can be controlled by the helicity of the optical…”
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2
Spin–photon interface and spin-controlled photon switching in a nanobeam waveguide
Published in Nature nanotechnology (01-05-2018)“…The spin of an electron is a promising memory state and qubit. Connecting spin states that are spatially far apart will enable quantum nodes and quantum…”
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3
Optically Coherent Nitrogen-Vacancy Defect Centers in Diamond Nanostructures
Published in Physical review. X (01-03-2023)“…Optically active solid-state spin defects have the potential to become a versatile resource for quantum information processing applications. Nitrogen-vacancy…”
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4
Efficient fiber-coupled single-photon source based on quantum dots in a photonic-crystal waveguide
Published in Optica (20-02-2017)“…Many photonic quantum information processing applications would benefit from a high brightness, fiber-coupled source of triggered single photons. Here, we…”
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5
Fabrication of Sawfish photonic crystal cavities in bulk diamond
Published in APL photonics (01-03-2024)“…Color centers in diamonds are quantum systems with optically active spin-states that show long coherence times and are, therefore, a promising candidate for…”
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6
Experimental Reconstruction of the Few-Photon Nonlinear Scattering Matrix from a Single Quantum Dot in a Nanophotonic Waveguide
Published in Physical review letters (15-01-2021)“…Coherent photon-emitter interfaces offer a way to mediate efficient nonlinear photon-photon interactions, much needed for quantum information processing. Here…”
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7
Quantum Optics with Near-Lifetime-Limited Quantum-Dot Transitions in a Nanophotonic Waveguide
Published in Nano letters (14-03-2018)“…Establishing a highly efficient photon-emitter interface where the intrinsic linewidth broadening is limited solely by spontaneous emission is a key step in…”
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8
Lifetimes and Quantum Efficiencies of Quantum Dots Deterministically Positioned in Photonic‐Crystal Waveguides
Published in Advanced quantum technologies (Online) (01-11-2020)“…Interfacing single emitters and photonic nanostructures enables modifying their emission properties, such as enhancing individual decay rates or controlling…”
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9
Ambiguous Resonances in Multipulse Quantum Sensing with Nitrogen Vacancy Centers
Published 12-07-2024“…Dynamical decoupling multipulse sequences can be applied to solid state spins for sensing weak oscillating fields from nearby single nuclear spins. By…”
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10
AIGaN on AIN/Sapphire: A New Material Platform in Integrated Photonics Technology
Published in 2024 Conference on Lasers and Electro-Optics (CLEO) (05-05-2024)“…AIGaN on AIN/Sapphire stands out in photonics for its strong nonlinearity, electro-optic modulability, and low loss in the visible spectrum. We fabricate and…”
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Conference Proceeding -
11
AlGaN/AlN heterostructures: an emerging platform for nonlinear integrated photonics
Published 05-12-2023“…In the rapidly evolving area of integrated photonics, there is a growing need for materials that satisfy the particular requirements of increasingly complex…”
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12
Sawfish Photonic Crystal Cavities With Resonances at NV and SnV Transition Frequencies
Published in 2024 Conference on Lasers and Electro-Optics (CLEO) (05-05-2024)“…We present the fabrication and characterization of "Sawfish" cavities in diamond, a new design of resonant photonic nanostructures to increase the emission…”
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Conference Proceeding -
13
Quantum Electrometer for Time-Resolved Material Science at the Atomic Lattice Scale
Published 25-01-2024“…The detection of individual charges plays a crucial role in fundamental material science and the advancement of classical and quantum high-performance…”
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14
Fabrication of AlGaN Integrated Photonic Devices
Published in 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (26-06-2023)“…AlGaN is a highly promising material for the next generation of integrated optics due to its wide band gap and transparency over a wide spectral range, from UV…”
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Conference Proceeding -
15
Optical probing of phononic properties of a tin-vacancy color center in diamond
Published 08-12-2023“…The coherence characteristics of a tin-vacancy color center in diamond are investigated through optical means including coherent population trapping between…”
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16
Fabrication of Sawfish photonic crystal cavities in bulk diamond
Published 14-11-2023“…Color centers in diamond are quantum systems with optically active spin-states that show long coherence times and are therefore a promising candidate for the…”
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Journal Article -
17
Diamond "Sawfish" Photonic Crystal Cavities
Published in 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (26-06-2023)“…Diamond is host to color centers, an interesting type of quantum system. Examples are the well-studied nitrogen-vacancy center and more recent the group-IV…”
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Conference Proceeding -
18
Coherent Excitation of a Tin-Vacancy Color Center with the SUPER Scheme
Published in 2024 Conference on Lasers and Electro-Optics (CLEO) (05-05-2024)“…We apply the novel coherent excitation scheme SUPER for the first time to a diamond color center using pulses detuned from the transition. This approach…”
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Conference Proceeding -
19
Overcoming Spectral Diffusion for Enhanced Spin-Photon Entanglement using NV Defect Centers in Diamond Nanostructures
Published in 2023 Conference on Lasers and Electro-Optics (CLEO) (01-05-2023)“…Optically coherent NV defect centers in diamond nanostructures are demonstrated using a combination of methods that mitigate spectral diffusion, including…”
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Conference Proceeding -
20
SUPER and subpicosecond coherent control of an optical qubit in a tin-vacancy color center in diamond
Published 08-12-2023“…The coherent excitation of an optically active spin system is one of the key elements in the engineering of a spin-photon interface. In this work, we use the…”
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