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

Sinusoidal Sources01:18

Sinusoidal Sources

1.2K
Direct current (DC) refers to an electric current that flows in a single direction, maintaining a constant polarity. This is in contrast to alternating current (AC), which periodically changes its direction and magnitude. AC forms the backbone of modern electricity transmission and distribution systems due to its efficient long-distance transmission capabilities.
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
1.2K
Source Transformation01:15

Source Transformation

11.4K
Source transformation is a fundamental technique employed in circuit analysis, offering a valuable tool for simplifying complex electrical circuits. This technique involves the replacement of either a voltage source in series with a resistor by a current source in parallel with a resistor, or vice versa. The key concept here is that when the original sources are deactivated (turned off), the equivalent resistance at the circuit's end terminals remains the same.
It is essential to note that when...
11.4K
AC Sources01:20

AC Sources

4.1K
Direct current is a flow of electric charge in only one direction and has a steady state of constant voltage in the circuit. Rectifiers, batteries, commutator-equipped generators, and fuel cells are some examples of devices that generate direct current. Nowadays, most applications use a time-varying voltage source. Alternating current is a flow of electric charge that periodically reverses direction. An alternating current is produced by an alternating emf that is generated in a power plant. If...
4.1K
Sources of Law01:26

Sources of Law

1.9K
Laws form the essential rules set by governing authorities to shape and control societal behavior. In nursing, laws guide actions, safeguard patient rights, define nurses' scope of practice, and maintain professional standards. Understanding the legal framework governing nursing involves recognizing four primary sources of law: constitutional, statutory, administrative (regulatory), and common law.
Constitutional law is foundational, deriving from federal and state constitutions, and...
1.9K
Independent and Dependent Sources01:18

Independent and Dependent Sources

2.6K
In electrical circuits, sources play a crucial role in providing power for the operation of the circuit. These sources can be broadly categorized into two types: independent and dependent.
Independent voltage or current sources supply a fixed amount of voltage or current, respectively, which is unaffected by other elements within the circuit. These are represented using specific symbols. Independent voltage sources are symbolized with polarities (+ and -), indicating the direction of the...
2.6K
RC Circuit without Source01:16

RC Circuit without Source

2.6K
When a DC source is abruptly disconnected from an RC (Resistor-Capacitor) circuit, the circuit becomes source-free. Assuming that the capacitor was fully charged before the source was removed, its initial voltage, denoted as V0, can be considered as the initial energy that stimulates the circuit.
Applying Kirchhoff's current law at the top node of the circuit and substituting the current values across the components, a first-order differential equation is obtained. By rearranging the terms...
2.6K

You might also read

Related Articles

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

Sort by
Same author

Characterization of highly focused vector fields using phase retrieval: a practical guide.

Applied optics·2025
Same author

Exploring the dynamics of finite-energy Airy beams: a trajectory analysis perspective.

Optics express·2024
Same author

Affine diffractive beam dividers.

Journal of the Optical Society of America. A, Optics, image science, and vision·2024
Same author

Three-dimensional polarization of fields radiated by partially coherent electromagnetic cylindrical sources.

Optics letters·2023
Same author

Partially coherent spherical sources with spherical harmonic modes.

Journal of the Optical Society of America. A, Optics, image science, and vision·2022
Same author

Cylindrical partially coherent scalar sources.

Optics letters·2022
Same journal

Long-term stabilization of intensity-difference squeezing from four-wave mixing in rubidium vapor.

Optics express·2026
Same journal

Robust 3D topography measurement of large-range high-aspect-ratio structures based on dual-domain statistical filtering in SD-OCT.

Optics express·2026
Same journal

Broadband transmissive terahertz metasurface for simultaneous quad-mode OAM multiplexing.

Optics express·2026
Same journal

Leveraging two-dimensional materials for high-sensitivity optical sensors: quasi-bound states in the continuum within hybrid metasurfaces.

Optics express·2026
Same journal

Resolution investigation for dual-spherical-wave optical scanning holographic microscopy: methods and performance.

Optics express·2026
Same journal

Robustness of parallel subnetwork-filtered diffractive deep neural networks.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Jan 27, 2026

Preparation of Pseudo-Typed H5 Avian Influenza Viruses with Calcium Phosphate Transfection Method and Measurement of Antibody Neutralizing Activity
07:15

Preparation of Pseudo-Typed H5 Avian Influenza Viruses with Calcium Phosphate Transfection Method and Measurement of Antibody Neutralizing Activity

Published on: November 22, 2021

2.9K

Pseudo-Schell model sources.

J C G de Sande, Rosario Martínez-Herrero, Gemma Piquero

    Optics Express
    |March 17, 2019
    PubMed
    Summary
    This summary is machine-generated.

    Partially coherent pseudo-Schell model sources offer improved beam quality and sharper irradiance profiles compared to Gaussian Schell-model sources. Their unique coherence properties ensure intensity nulls are maintained along the propagation axis, even with optical vortices.

    More Related Videos

    Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model
    11:19

    Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model

    Published on: February 10, 2011

    12.3K
    Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings
    08:20

    Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings

    Published on: June 6, 2015

    15.9K

    Related Experiment Videos

    Last Updated: Jan 27, 2026

    Preparation of Pseudo-Typed H5 Avian Influenza Viruses with Calcium Phosphate Transfection Method and Measurement of Antibody Neutralizing Activity
    07:15

    Preparation of Pseudo-Typed H5 Avian Influenza Viruses with Calcium Phosphate Transfection Method and Measurement of Antibody Neutralizing Activity

    Published on: November 22, 2021

    2.9K
    Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model
    11:19

    Dorsal Column Steerability with Dual Parallel Leads using Dedicated Power Sources: A Computational Model

    Published on: February 10, 2011

    12.3K
    Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings
    08:20

    Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings

    Published on: June 6, 2015

    15.9K

    Area of Science:

    • Optics and Photonics
    • Classical Optics
    • Beam Propagation

    Background:

    • Schell-model sources are widely used to model partially coherent light beams.
    • Understanding the influence of source coherence on beam propagation is crucial for optical system design.
    • Gaussian Schell-model sources represent a standard benchmark for partially coherent beams.

    Purpose of the Study:

    • To introduce and analyze partially coherent pseudo-Schell model sources.
    • To investigate the unique propagation characteristics of beams generated by these sources.
    • To compare their performance against traditional Gaussian Schell-model sources.

    Main Methods:

    • Theoretical introduction and mathematical analysis of pseudo-Schell model sources.
    • Derivation of coherence properties and radial symmetry.
    • Analysis of paraxial beam propagation and irradiance profiles.
    • Comparison of beam quality parameters and intensity distributions.

    Main Results:

    • Pseudo-Schell model sources exhibit radial symmetry and coherence dependent on radial distances.
    • Beams from these sources show sharper irradiance profiles and higher peak intensities than Gaussian Schell-model beams.
    • A superior beam quality parameter is observed for pseudo-Schell model sources.
    • Vortices in pseudo-Schell model sources result in propagated beams that maintain an axial intensity null.

    Conclusions:

    • Partially coherent pseudo-Schell model sources offer advantages in beam shaping and quality.
    • These sources provide a novel approach to generating beams with enhanced propagation characteristics.
    • The preservation of axial intensity nulls in vortex beams is a significant finding for optical applications.