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

Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

7.4K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
7.4K
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

1.3K
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...
1.3K
Detection of Black Holes01:10

Detection of Black Holes

2.3K
Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
2.3K
Symmetry in Maxwell's Equations01:28

Symmetry in Maxwell's Equations

3.7K
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
3.7K
Self-Discrepancy Theory02:45

Self-Discrepancy Theory

18.5K
One influential perspective on what motivates people's behavior is detailed in Tory Higgin's self-discrepancy theory (Higgins, 1987). He proposed that people hold disagreeing internal representations of themselves that lead to different emotional states.  
18.5K
¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

1.3K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.3K

You might also read

Related Articles

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

Sort by
Same author

Polarization dependent emission characteristics of Rayleigh scattering in nanoparticle-doped optical fibers.

Optics express·2026
Same author

Dispersion-tuned mode-locked optoelectronic oscillator.

Optics letters·2026
Same author

Three-Dimensional Laser Scanning-Assisted Prosthetic Breast Augmentation for Breast Asymmetry.

Aesthetic plastic surgery·2026
Same author

A comprehensive survey of AI agents in healthcare.

Journal of biomedical informatics·2026
Same author

Author Correction: HDAC6 facilitates LUAD progression by inducing EMT and enhancing macrophage polarization towards the M2 phenotype.

NPJ precision oncology·2026
Same author

Letter to the Editor: Single-cell and multi-omics integrative modeling identifies mitochondrial gene HSPE1 as a therapeutic target in osteosarcoma.

Journal of translational medicine·2026
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: Oct 17, 2025

Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS
12:56

Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS

Published on: October 17, 2010

13.8K

Asymmetric self-coherent detection.

Xueyang Li, Maurice O'Sullivan, Zhenping Xing

    Optics Express
    |October 7, 2021
    PubMed
    Summary
    This summary is machine-generated.

    We introduce an asymmetric self-coherent detection (ASCD) scheme for reconstructing optical signals. This cost-effective method enhances direct-detection receivers for high-speed short-reach communications.

    More Related Videos

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    9.3K
    Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
    07:19

    Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM

    Published on: June 28, 2017

    10.5K

    Related Experiment Videos

    Last Updated: Oct 17, 2025

    Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS
    12:56

    Differential Imaging of Biological Structures with Doubly-resonant Coherent Anti-stokes Raman Scattering CARS

    Published on: October 17, 2010

    13.8K
    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    9.3K
    Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
    07:19

    Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM

    Published on: June 28, 2017

    10.5K

    Area of Science:

    • Optical Communications
    • Signal Processing

    Background:

    • Short-reach optical communication systems require increased bandwidth.
    • Existing detection schemes often lack cost-effectiveness or field reconstruction capabilities.

    Purpose of the Study:

    • To propose and validate an asymmetric self-coherent detection (ASCD) scheme.
    • To enable field reconstruction for self-coherent (SC) complex double-sideband (DSB) signals using a direct-detection (DD) receiver.

    Main Methods:

    • Developed an ASCD scheme utilizing a DD receiver with two reception paths.
    • Each path employs a photodiode (PD) and analog-to-digital converter (ADC) with differing optical transfer functions.
    • Derived an analytical solution for signal field reconstruction and determined optimal filter responses for signal-to-noise ratio (SNR) maximization.

    Main Results:

    • Demonstrated a specific ASCD scheme using a chromatic dispersion filter.
    • Validated the ASCD principle through a proof-of-concept experiment.
    • The ASCD scheme achieves performance close to electrical spectral efficiency of coherent detection.

    Conclusions:

    • The ASCD scheme offers a cost-effective solution for high-speed short-reach optical links.
    • It shows significant potential for applications like edge cloud communications and mobile x-haul systems.
    • ASCD combines field reconstruction with a simplified receiver architecture.