Search Results - "Lettner, Niklas"
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1
Single photon randomness originating from the symmetric dipole emission pattern of quantum emitters
Published in Applied physics letters (24-01-2022)“…Quantum random number generation is a key ingredient for quantum cryptography and fundamental quantum optics and could advance Monte Carlo simulations and…”
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2
High-purity single photons obtained with moderate-NA optics from SiV center in nanodiamonds on a bullseye antenna
Published in New journal of physics (01-11-2021)“…Abstract Coherent exchange of single photons is at the heart of applied quantum optics. The negatively-charged silicon vacancy center in diamond is among most…”
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3
Strongly coupled spins of silicon-vacancy centers inside a nanodiamond with sub-megahertz linewidth
Published in Nanophotonics (Berlin, Germany) (27-05-2024)“…The search for long-lived quantum memories, which can be efficiently interfaced with flying qubits, is longstanding. One possible solution is to use the…”
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4
Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator
Published in Communications physics (16-10-2023)“…Large-scale quantum communication networks require quantum repeaters due to the signal attenuation in optical fibers. Ideal quantum repeater nodes efficiently…”
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5
Purcell-enhanced emission from individual SiV− center in nanodiamonds coupled to a Si3N4-based, photonic crystal cavity
Published in Nanophotonics (Berlin, Germany) (01-09-2020)“…Hybrid quantum photonics combines classical photonics with quantum emitters in a postprocessing step. It facilitates to link ideal quantum light sources to…”
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6
Enhanced spectral density of a single germanium vacancy center in a nanodiamond by cavity integration
Published in Applied physics letters (10-07-2023)“…Color centers in diamond, among them the negatively charged germanium vacancy (GeV−), are promising candidates for many applications of quantum optics, such as…”
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7
Room-Temperature Fiber-Coupled Single-Photon Sources based on Colloidal Quantum Dots and SiV Centers in Back-Excited Nanoantennas
Published in Nano letters (17-01-2024)“…We demonstrate an important step toward on-chip integration of single-photon sources at room temperature. Excellent photon directionality is achieved with a…”
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8
Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics
Published in ACS photonics (21-02-2024)“…Nanophotonic quantum devices can significantly boost light–matter interaction, which is important for applications such as quantum networks. Reaching a high…”
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9
Hybrid Quantum Photonics Based on Artificial Atoms Placed Inside One Hole of a Photonic Crystal Cavity
Published in ACS photonics (15-09-2021)“…Spin-based, quantum-photonics promise to realize distributed quantum computing and quantum networks. The performance depends on an efficient entanglement…”
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10
Purcell-enhanced emission from individual SiV − center in nanodiamonds coupled to a Si 3 N 4 -based, photonic crystal cavity
Published in Nanophotonics (Berlin, Germany) (03-09-2020)“…Abstract Hybrid quantum photonics combines classical photonics with quantum emitters in a postprocessing step. It facilitates to link ideal quantum light…”
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Journal Article -
11
Strongly Coupled Spins of Silicon-Vacancy Centers Inside a Nanodiamond with Sub-Megahertz Linewidth
Published 14-12-2023“…The search for long-lived quantum memories, which can be efficiently interfaced with flying qubits is longstanding. One possible solution is to use the…”
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12
Enhanced Spectral Density of a Single Germanium Vacancy Center in a Nanodiamond by Cavity-Integration
Published 30-11-2023“…Color centers in diamond, among them the negatively-charged germanium vacancy (GeV$^-$), are promising candidates for many applications of quantum optics such…”
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13
Controlling all Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics
Published 26-10-2023“…Nanophotonic quantum devices can significantly boost light-matter interaction which is important for applications such as quantum networks. Reaching a high…”
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14
Hybrid Quantum Nanophotonics: Interfacing Color Center in Nanodiamonds with Si3N4-Photonics
Published 26-07-2022“…This chapter covers recent developments in the field of hybrid quantum photonics based on color centers in nanodiamonds and Si3N4-photonics towards a…”
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15
All-Optical Spin Initialization via a Cavity Broadened Optical Transition in On-Chip Hybrid Quantum Photonics
Published 29-08-2023“…Hybrid quantum photonic systems connect classical photonics to the quantum world and promise to deliver efficient light-matter quantum interfaces while…”
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16
Room Temperature Fiber-Coupled single-photon devices based on Colloidal Quantum Dots and SiV centers in Back Excited Nanoantennas
Published 19-03-2023“…We demonstrate an important step towards on chip integration of single photon sources operating at room temperature fiber coupling of a directional quantum…”
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17
Single photon randomness originating from the symmetry of dipole emission and the unpredictability of spontaneous emission
Published 18-02-2021“…Appl. Phys. Lett. 120, 044001 (2022) Quantum random number generation is a key ingredient for quantum cryptography and fundamental quantum optics and could…”
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18
A Quantum Repeater Platform based on Single SiV$^-$ Centers in Diamond with Cavity-Assisted, All-Optical Spin Access and Fast Coherent Driving
Published 28-10-2022“…Quantum key distribution enables secure communication based on the principles of quantum mechanics. The distance in fiber-based quantum communication is…”
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19
A Robust Coherent Single-Photon Interface for Moderate- NA Optics Based on SiV Center in Nanodiamonds and a Plasmonic Bullseye Antenna
Published 22-01-2021“…Coherent exchange of single photons is at the heart of applied Quantum Optics. The negatively-charged silicon vacancy center in diamond is among most promising…”
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20
Hybrid quantum photonics based on artificial atoms placed inside one hole of a photonic crystal cavity
Published 01-02-2021“…ACS Photonics, 8(9), 2635-2641 (2021) Spin-based quantum photonics promise to realize distributed quantum computing and quantum networks. The performance…”
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