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 Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

You might also read

Related Articles

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

Sort by
Same author

Entangled measurement for <i>W</i> states.

Science advances·2025
Same author

Host-Virus Interface in Persistent SARS-CoV-2 Infections: Viral Characteristic Evolution and Gene Expression Profiling Analysis.

International journal of molecular sciences·2025
Same author

Harnessing Free Sulfate Groups in Glycosylation Reactions.

Angewandte Chemie (International ed. in English)·2024
Same author

Intraoperatively measured prehepatectomy portal vein pressure as a useful predictor of posthepatectomy liver failure.

Langenbeck's archives of surgery·2024
Same author

Uncovering a Latent Bioactive Interleukin-6 Glycoform.

Angewandte Chemie (International ed. in English)·2024
Same author

Post-translational activation of the C-terminus of polypeptides for the synthesis of peptide thioesters and peptide thioester surrogates.

Frontiers in chemistry·2024
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

Related Experiment Video

Updated: May 20, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Highly indistinguishable heralded single-photon sources using parametric down conversion.

Masato Tanida1, Ryo Okamoto, Shigeki Takeuchi

  • 1The Institute of Scientific and Industrial Research, Osaka University, Ibaraki 567-0047, Japan.

Optics Express
|July 10, 2012
PubMed
Summary
This summary is machine-generated.

Researchers achieved highly indistinguishable single photons using spontaneous parametric down conversion. A 95.8% Hong-Ou-Mandel interference visibility was demonstrated, validating a new theoretical model for photon source optimization.

More Related Videos

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

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Related Experiment Videos

Last Updated: May 20, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

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

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Area of Science:

  • Quantum Optics
  • Photonics
  • Solid-State Physics

Background:

  • Single-photon sources are crucial for quantum technologies.
  • Achieving high indistinguishability is a key challenge.
  • Spontaneous parametric down conversion (SPDC) is a common generation method.

Purpose of the Study:

  • To investigate conditions for highly indistinguishable single-photon sources via SPDC.
  • To develop and validate a theoretical model for Hong-Ou-Mandel (HOM) interference.
  • To experimentally measure HOM interference visibility.

Main Methods:

  • Theoretical modeling of HOM interference considering non-uniform down conversion.
  • Experimental setup utilizing spontaneous parametric down conversion.
  • Measurement of HOM interference visibilities using beta barium borate crystals and bandpass filters.

Main Results:

  • A Hong-Ou-Mandel interference visibility of 95.8 ± 2% was experimentally achieved.
  • The proposed theoretical model accurately explains the experimental results.
  • Optimized conditions for generating indistinguishable photons were identified.

Conclusions:

  • Highly indistinguishable single-photon sources are achievable using SPDC.
  • The developed theoretical model provides a framework for optimizing photon sources.
  • This work advances the development of robust quantum light sources.