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

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Interference: Path Lengths01:10

Interference: Path Lengths

Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single stretching vibration...
Interference and Superposition of Waves01:07

Interference and Superposition of Waves

When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...
Sound Waves: Interference00:53

Sound Waves: Interference

Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...

You might also read

Related Articles

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

Sort by
Same author

Calcium amelioration of aluminium toxicity effects on root hair development in soybean [Glycine max (L.) Merr.].

The New phytologist·2021
Same author

A coded aperture microscope for X-ray fluorescence full-field imaging.

Journal of synchrotron radiation·2020
Same author

Oral health behaviours of children in England, Wales and Northern Ireland 2013.

British dental journal·2016
Same author

Maintaining dental implants--do general dental practitioners have the necessary knowledge?

British dental journal·2015
Same author

Compressive sensing in the EO/IR.

Applied optics·2015
Same author

Dental students' uptake of mobile technologies.

British dental journal·2014

Related Experiment Video

Updated: Jul 7, 2026

Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy
06:51

Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy

Published on: August 2, 2018

Noise and information in interferometric cross correlators.

K B Hill, S A Basinger, R A Stack

    Applied Optics
    |June 10, 1997
    PubMed
    Summary

    This study analyzes optical interferometric cross correlators using broadband light. We derived the signal-to-noise ratio theoretically and confirmed it experimentally, discussing noise sources.

    Area of Science:

    • Optics and Photonics
    • Signal Processing

    Background:

    • Optical interferometric cross correlators are crucial for signal analysis.
    • Broadband light sources present unique challenges and opportunities in interferometry.

    Purpose of the Study:

    • To theoretically derive and experimentally validate the signal-to-noise ratio (SNR) for optical interferometric cross correlators.
    • To identify and analyze noise sources impacting system performance.

    Main Methods:

    • Derivation of the SNR equation from fundamental principles.
    • Experimental setup utilizing broadband light sources.
    • Measurement and analysis of system noise.

    Main Results:

    • Theoretical SNR model developed for broadband interferometric systems.

    More Related Videos

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    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

    Related Experiment Videos

    Last Updated: Jul 7, 2026

    Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy
    06:51

    Confocal Microscopy Reveals Cell Surface Receptor Aggregation Through Image Correlation Spectroscopy

    Published on: August 2, 2018

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    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

  • Experimental data successfully corroborated the theoretical SNR predictions.
  • Key noise sources were identified and quantified.

    • Conclusions:

    • The derived SNR model accurately describes performance in broadband optical interferometric cross correlators.
    • Understanding and mitigating noise is essential for optimizing these systems.
    • Experimental validation confirms the theoretical framework.