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

Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

680
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
680
NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

1.0K
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
1.0K
Self-Locking Screw01:16

Self-Locking Screw

2.4K
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
2.4K
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

535
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
535
Biasing of FET01:22

Biasing of FET

660
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
660

You might also read

Related Articles

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

Sort by
Same author

Prism coupling and visualization of surface nanoscale axial photonic structures.

Communications engineering·2026
Same author

Environmentally stabilized crystalline WGM resonator.

Optics letters·2026
Same author

Light shift suppression in a CPT magnetometer using linear polarization and double frequency interrogation.

Optics letters·2026
Same author

Ultimate power efficiency of a dichromatically pumped hyperparametric oscillator.

Optics letters·2025
Same author

Dispersive-wave-agile optical frequency division.

Nature photonics·2025
Same author

Sensitivity of a vector atomic magnetometer based on electromagnetically induced transparency.

Optics express·2024
Same journal

Correction: A method for supervoxel-wise association studies of age and other non-imaging variables from coronary computed tomography angiograms.

Scientific reports·2026
Same journal

Poly(bromophenol blue)/CoSn(OH)<sub>6</sub> cubic particles modified pencil graphite electrode for electrochemical determination of diphenhydramine.

Scientific reports·2026
Same journal

Dietary Chlorella, Spirulina, and acidifier modulate jejunal cytokine-related gene expression in broiler chickens.

Scientific reports·2026
Same journal

Perceived physical activity barriers in university students: associations with fatigue and eating behaviours.

Scientific reports·2026
Same journal

Refuge limitation structures habitat use in agricultural landscapes: evidence from Sunda pangolins.

Scientific reports·2026
Same journal

Lightweight stateless transaction verification with outsourced witness updates for UTXO blockchains.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: Jan 12, 2026

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.5K

Kerr nonlinearity, self-injection locking and correlation in a microresonator.

Andrey Matsko1, Abdelkrim El Amili2, Lute Maleki2

  • 1Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109-8099, USA. andrey.b.matsko@jpl.nasa.gov.

Scientific Reports
|November 6, 2025
PubMed
Summary
This summary is machine-generated.

We demonstrate a new method for generating entangled photon pairs using nonlinear optical harmonics. This approach overcomes spatial separation challenges, advancing integrated quantum technologies.

More Related Videos

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

Published on: May 18, 2011

13.5K
Label-free Single Molecule Detection Using Microtoroid Optical Resonators
08:53

Label-free Single Molecule Detection Using Microtoroid Optical Resonators

Published on: December 29, 2015

9.7K

Related Experiment Videos

Last Updated: Jan 12, 2026

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.5K
Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

Published on: May 18, 2011

13.5K
Label-free Single Molecule Detection Using Microtoroid Optical Resonators
08:53

Label-free Single Molecule Detection Using Microtoroid Optical Resonators

Published on: December 29, 2015

9.7K

Area of Science:

  • Quantum Optics
  • Integrated Quantum Technologies
  • Nonlinear Optics

Background:

  • Entangled photon pair production is crucial for quantum communication, computing, and physics.
  • Efficient generation and spatial separation of entangled photons are key challenges in integrated quantum technologies.
  • Parametric oscillators are vital for generating photon pairs, but low-loss methods are needed.

Purpose of the Study:

  • To demonstrate nonlinear generation of correlated optical harmonics.
  • To address the challenge of spatial separation of generated photons while preserving entanglement.
  • To advance integrated quantum technologies through efficient photon pair generation.

Main Methods:

  • Utilized non-degenerate four-wave mixing in an optimally pumped optical microcavity with Kerr nonlinearity.
  • Achieved phase matching using self-injection locked lasers locked to two different microresonator modes.
  • Employed counterpropagating light from two self-injection locked lasers for spatial separation.

Main Results:

  • Demonstrated nonlinear generation of correlated optical harmonics.
  • Successfully addressed the spatial separation challenge for generated harmonics.
  • Showcased correlation mediated by self-injection locking and Kerr nonlinearity between lasers.
  • Validated theoretical predictions using integrated semiconductor lasers and a whispering gallery mode resonator.

Conclusions:

  • The demonstrated method offers an efficient approach for generating entangled photon pairs.
  • The technique effectively overcomes spatial separation issues in integrated quantum systems.
  • This work contributes to the advancement of integrated quantum technologies.