Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 22, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

High purity bright single photon source.

J S Neergaard-Nielsen, B M Nielsen, H Takahashi

    Optics Express
    |June 24, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Magnetic resonance imaging with optical preamplification and detection.

    Scientific reports·2019
    Same author

    Overcoming the Standard Quantum Limit in Gravitational Wave Detectors Using Spin Systems with a Negative Effective Mass.

    Physical review letters·2018
    Same author

    Ultracoherent nanomechanical resonators via soft clamping and dissipation dilution.

    Nature nanotechnology·2017
    Same author

    Coherent Backscattering of Light Off One-Dimensional Atomic Strings.

    Physical review letters·2016
    Same author

    Scalable photonic network architecture based on motional averaging in room temperature gas.

    Nature communications·2016
    Same author

    Generation and detection of a sub-Poissonian atom number distribution in a one-dimensional optical lattice.

    Physical review letters·2015
    Same journal

    Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

    Optics express·2026
    Same journal

    Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

    Optics express·2026
    Same journal

    Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

    Optics express·2026
    Same journal

    Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

    Optics express·2026
    Same journal

    Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

    Optics express·2026
    Same journal

    Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

    Optics express·2026
    See all related articles

    We developed a tunable, narrow-bandwidth source of heralded single photons, ideal for quantum memories. This bright source achieves 70% purity, demonstrating its potential for advanced quantum applications.

    Area of Science:

    • Quantum Optics
    • Photonics
    • Quantum Information Science

    Background:

    • Single photon sources are crucial for quantum technologies.
    • Existing sources often lack tunability or sufficient brightness.
    • Compatibility with quantum memories is essential for scalable quantum networks.

    Purpose of the Study:

    • To develop a frequency-tunable source of heralded single photons.
    • To achieve narrow spectral bandwidth for compatibility with atomic quantum memories.
    • To characterize the purity and brightness of the generated single photons.

    Main Methods:

    • Cavity-enhanced non-degenerate parametric down-conversion.
    • Tomographic measurement and quantum state reconstruction.
    • Photon counting and homodyne detection for correlation function analysis.

    More Related Videos

    Preparing a Celadonite Electron Source and Estimating Its Brightness
    09:14

    Preparing a Celadonite Electron Source and Estimating Its Brightness

    Published on: November 5, 2019

    Related Experiment Videos

    Last Updated: Jun 22, 2026

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    Preparing a Celadonite Electron Source and Estimating Its Brightness
    09:14

    Preparing a Celadonite Electron Source and Estimating Its Brightness

    Published on: November 5, 2019

    Main Results:

    • A frequency-tunable heralded single photon source with an 8 MHz bandwidth was created.
    • The single photon state purity was characterized as 70%, with a negative Wigner function.
    • A high spectral brightness of ~1,500 photons/s per MHz was achieved.

    Conclusions:

    • The developed source is highly compatible with atomic quantum memories due to its narrow bandwidth.
    • The high purity and brightness make it a leading single photon source for quantum applications.
    • Correlation function analysis using diverse detection methods provides comprehensive characterization.