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Single-photon sources as new quantum standards

Short Name: SIQUST, Project Number: 17FUN06
Image of the setup or the nitrogen-vacancy centre based absolute single-photon source provided by PTB
Setup for the nitrogen-vacancy centre based absolute single-photon source - Courtesy of PTB
Coordinator
Stefan Kück (PTB)

Improving sources of single photons to accelerate quantum technology innovation


Technologies based on the laws of quantum mechanics are the next stage of industrial and scientific innovation.

With far-reaching applications, from super-fast computers and ultra-secure communication to sensitive sensors for biomedical imaging, they will help to provide solutions to many of today’s global challenges.

A fundamental building block of optical quantum technologies are light sources that can emit single photons. However, despite large steps forward, existing single-photon sources were still insufficient for real, practical uses.

 

This project carried out the fundamental work needed to develop a new quantum standard, by assessing and establishing new materials and designs for single-photon sources.

It also developed essential elements for supporting measurement infrastructure, such as amplifiers and detectors.

By providing access to better single-photon sources, this project helped catalyse future innovation in the field of optical quantum technology, and contributed towards the future realisation of a quantum definition of the luminous intensity SI base unit, the candela.

 

This project built on results from the EMRP project EXL02 SIQUTE.

 

Links
Project website
Link
Final Report
Publishable Summary
Publications
Single photon sources for quantum radiometry: a brief review about the current state-of-the-art
2022

Applied Physics B

Comparison of back focal plane imaging of nitrogen vacancy centers in nanodiamond and core-shell CdSe/CdS quantum dots
2022

Journal of Physics: Conference Series

Bimodal behavior of microlasers investigated with a two-channel photon-number-resolving transition-edge sensor system
2021

Physical Review Research

Triggered emission of indistinguishable photons from an organic dye molecule
2021

Applied Physics Letters

On the importance of antimony for temporal evolution of emission from self-assembled (InGa) (AsSb)/GaAs quantum dots on GaP(001)
2021

New Journal of Physics

Protective Measurement—A New Quantum Measurement Paradigm: Detailed Description of the First Realization
2021

Applied Sciences

Anomalous weak values via a single photon detection
2021

Light: Science & Applications

Absolute calibration of a single-photon avalanche detector using a bright triggered single-photon source based on an InGaAs quantum dot
2021

Optics Express

Spectral Emission Dependence of Tin‐Vacancy Centers in Diamond from Thermal Processing and Chemical Functionalization
2021

Advanced Photonics Research

A cavity-based optical antenna for color centers in diamond
2021

APL Photonics

Sample fabrication and metrological characterization of single-photon emitters based on nitrogen vacancy centers in nanodiamonds
2021

Engineering Research Express

Single photon sources for absolute radiometry – A review about the current state of the art
2021

Measurement: Sensors

Spectral features of Pb-related color centers in diamond – a systematic photoluminescence characterization
2021

New Journal of Physics

Creation of pure non-crystalline diamond nanostructures via room-temperature ion irradiation and subsequent thermal annealing
2021

Nanoscale Advances

Fluorine-based color centers in diamond
2020

Scientific Reports

Radiometric characterization of a triggered narrow-bandwidth single-photon source and its use for the calibration of silicon single-photon avalanche detectors
2020

Metrologia

Characterization of the angular-dependent emission of nitrogen-vacancy centers in nanodiamond
2020

Applied Physics B

A 3D Polymeric Platform for Photonic Quantum Technologies
2020

Advanced Quantum Technologies

Quantum dot single-photon emission coupled into single-mode fibers with 3D printed micro-objectives
2020

APL Photonics

A biocompatible technique for magnetic field sensing at (sub)cellular scale using Nitrogen-Vacancy centers
2020

EPJ Quantum Technology

Practical Applications of Quantum Sensing: A Simple Method to Enhance the Sensitivity of Nitrogen-Vacancy-Based Temperature Sensors
2020

Physical Review Applied

A study to develop a robust method for measuring the detection efficiency of free-running InGaAs/InP single-photon detectors
2020

EPJ Quantum Technology

Is a Quantum Biosensing Revolution Approaching? Perspectives in NV‐Assisted Current and Thermal Biosensing in Living Cells
2020

Advanced Quantum Technologies

Spectroscopic investigations of negatively charged tin-vacancy centres in diamond
2020

New Journal of Physics

Photon-number parity of heralded single photons from a Bragg-reflection waveguide reconstructed loss-tolerantly via moment generating function
2019

New Journal of Physics

Theoretical description and experimental simulation of quantum entanglement near open time-like curves via pseudo-density operators
2019

Nature Communications

Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source
2019

Metrologia

Optimal estimation of entanglement and discord in two-qubit states
2019

Scientific Reports

Quantum nanophotonics with group IV defects in diamond
2019

Nature Communications

Resolving the temporal evolution of line broadening in single quantum emitters
2019

Optics Express

Deterministically fabricated spectrally-tunable quantum dot based single-photon source
2019

Optical Materials Express

Optical response of (InGa)(AsSb)/GaAs quantum dots embedded in a GaP matrix
2019

Physical Review B

Method for direct coupling of a semiconductor quantum dot to an optical fiber for single-photon source applications
2019

Optics Express

Single-particle-picture breakdown in laterally weakly confining GaAs quantum dots
2019

Physical Review B

Topology Driven g-Factor Tuning in Type-II Quantum Dots
2019

Physical Review Applied

A Molecule‐Based Single‐Photon Source Applied in Quantum Radiometry
2019

Advanced Quantum Technologies

Cesium‐Vapor‐Based Delay of Single Photons Emitted by Deterministically Fabricated Quantum Dot Microlenses
2019

Advanced Quantum Technologies

Coherence and indistinguishability of highly pure single photons from non-resonantly and resonantly excited telecom C-band quantum dots
2019

Applied Physics Letters

Feasibility study towards comparison of the g (2)(0) measurement in the visible range
2019

Metrologia

Quantum imaging with sub-Poissonian light: challenges and perspectives in optical metrology
2019

Metrologia

Single-Photon Emitters in Lead-Implanted Single-Crystal Diamond
2018

ACS Photonics

Mapping the Local Spatial Charge in Defective Diamond by Means of NV Sensors - A Self-Diagnostic Concept
2018

Physical Review Applied

Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source
0

Metrologia

Feasibility study towards comparison of the g(2)(0) measurement in the visible range
0

Single-Photon Emitters in Lead-Implanted Single-Crystal Diamond
0

Deterministically fabricated spectrally-tunable quantum dot based single-photon source
0

Mapping the Local Spatial Charge in Defective Diamond by Means of N-V Sensors—A Self-Diagnostic Concept
0

Spectroscopic investigations of negatively charged tin-vacancy centres in diamond
0

Participating EURAMET NMIs and DIs
Aalto (Finland)
CMI (Czechia)
INRIM (Italy)
MIKES (Finland)
Metrosert (Estonia)
NPL (United Kingdom)
PTB (Germany)
Other Participants
Agencia Estatal Consejo Superior de Investigaciones Cientificas (Spain)
Consiglio Nazionale delle Ricerche (Italy)
Friedrich-Alexander-Universität Erlangen - Nürnberg (Germany)
Istituto Nazionale di Fisica Nucleare (Italy)
Technische Universität Berlin (Germany)
Università degli Studi di Torino (Italy)
Universitaet Stuttgart (Germany)
Universität des Saarlandes (Germany)