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

Directional Relays01:25

Directional Relays

Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene π orbitals.
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

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...
Techniques for Isolation of Pure Cultures01:24

Techniques for Isolation of Pure Cultures

Microorganisms are routinely cultured in the laboratory using various techniques to isolate, grow, and quantify them for further study. These methods rely on inoculating microorganisms into a suitable growth medium under aseptic conditions to prevent contamination. Depending on the objective, inoculation can involve direct transfer or the use of diluted bacterial suspensions as the inoculum.Streak-Plate Method for IsolationThe streak-plate method is a common technique for obtaining pure...

You might also read

Related Articles

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

Sort by
Same author

Optical dispersion in twisted anisotropic materials.

Journal of the Optical Society of America. A, Optics, image science, and vision·2025
Same author

Wafer-scale nanofabrication of sub-5 nm gaps in plasmonic metasurfaces.

Nanophotonics (Berlin, Germany)·2024
Same author

Exploring the impact of longitudinal modulation on the twisting angle in Pancharatnam-Berry phase-based waveguides.

Optics express·2024
Same author

Enhancement of third harmonic generation induced by surface lattice resonances in plasmonic metasurfaces.

Optics letters·2023
Same author

Second harmonic generation under doubly resonant lattice plasmon excitation.

Optics express·2022
Same author

Optical isolation via direction-dependent soliton routing in birefringent soft matter.

Optics letters·2022
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

Related Experiment Video

Updated: Jul 3, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

All-optical isolation by directional coupling.

Alessandro Alberucci1, Gaetano Assanto

  • 1Nonlinear Optics and OptoElectronics Lab (NooEL), University "Roma Tre," Via della Vasca Navale 84, 00146, Rome, Italy.

Optics Letters
|August 2, 2008
PubMed
Summary
This summary is machine-generated.

Researchers developed an all-optical diode using a nonlinear phase defect in a coherent coupler. This device offers effective optical signal control in Kerr-like media.

More Related Videos

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Related Experiment Videos

Last Updated: Jul 3, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Area of Science:

  • Photonics and Optical Engineering
  • Nonlinear Optics
  • Quantum Optics

Background:

  • Coherent couplers are fundamental components in integrated photonics.
  • Achieving unidirectional light propagation (optical diode functionality) is crucial for optical circuits.
  • Nonlinear optical effects offer pathways to control light with light.

Purpose of the Study:

  • To investigate the feasibility of creating an all-optical diode.
  • To explore the role of nonlinear phase defects in optical devices.
  • To establish design criteria for such a device using Kerr-like media.

Main Methods:

  • Theoretical analysis of light propagation in a coherent coupler with a nonlinear phase defect.
  • Modeling the influence of Kerr nonlinearity on phase dynamics.
  • Derivation of design principles for achieving diode behavior.

Main Results:

  • Demonstrated that a nonlinear phase defect can induce asymmetric transmission, functioning as an all-optical diode.
  • Identified key parameters governing the diode's performance, such as defect strength and coupler length.
  • Proposed practical implementation schemes based on established nonlinear optical materials.

Conclusions:

  • An effective all-optical diode can be realized by incorporating a nonlinear phase defect into a coherent coupler.
  • The proposed design offers a novel approach for optical signal routing and control.
  • Further research can explore advanced functionalities and material optimizations for enhanced performance.