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

Kirchoff's Laws using Phasors01:12

Kirchoff's Laws using Phasors

689
Analyzing AC circuits in electrical systems is a fundamental aspect of electrical engineering. In these circuits, AC power is supplied from a distribution panel and wired to various household appliances in parallel. To perform a comprehensive analysis, electrical engineers use Kirchhoff's voltage and current laws, which are equally applicable in AC circuits as in DC circuits.
Kirchhoff's voltage law (KVL) states that the sum of phasor voltages around a closed loop in an AC circuit equals zero....
689
Phasor Arithmetics01:13

Phasor Arithmetics

619
Phasors and their corresponding sinusoids are interrelated, offering unique insights into the behavior of alternating current (AC) circuits. One way to understand this relationship is through the operations of differentiation and integration in both the time and phasor domains.
When the derivative of a sinusoid is taken in the time domain, it transforms into its corresponding phasor multiplied by j-omega (jω) in the phasor domain, where j is the imaginary unit, and ω is the angular...
619
Phasors01:12

Phasors

939
Phasors are a powerful mathematical tool used to analyze alternating current (AC) circuits. They provide a complex number representation of sinusoids, with the magnitude of the phasor equating to the amplitude of the sinusoid and the angle of the phasor representing the phase measured from the positive x-axis.
One of the significant benefits of using phasors is that they simplify the analysis of AC circuits by eliminating the time dependence of the current and voltage. This transformation...
939
Plane Electromagnetic Waves I01:30

Plane Electromagnetic Waves I

4.7K
The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed to be a...
4.7K
Phasor Relationships for Circuit Elements01:16

Phasor Relationships for Circuit Elements

869
Phasor representation is a powerful tool used to transform the voltage-current relationship for resistors, inductors, and capacitors from the time domain to the frequency domain. This transformation simplifies the analysis of alternating current (AC) circuits.
In the time domain, Ohm's law provides a fundamental relation between the current flowing through a resistor and the voltage across it:
869
Gauss's Law: Spherical Symmetry01:26

Gauss's Law: Spherical Symmetry

8.8K
A charge distribution has spherical symmetry if the density of charge depends only on the distance from a point in space and not on the direction. In other words, if the system is rotated, it doesn't look different. For instance, if a sphere of radius R is uniformly charged with charge density ρ0, then the distribution has spherical symmetry. On the other hand, if a sphere of radius R is charged so that the top half of the sphere has a uniform charge density ρ1 and the bottom half has a...
8.8K

You might also read

Related Articles

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

Sort by
Same author

Ultimate Accuracy Limit of Quantum Pulse-Compression Ranging.

Physical review letters·2022
Same author

Experimental Demonstration of Conjugate-Franson Interferometry.

Physical review letters·2021
Same author

Performance analysis of free-space quantum key distribution using multiple spatial modes.

Optics express·2021
Same author

Entanglement-Assisted Communication Surpassing the Ultimate Classical Capacity.

Physical review letters·2021
Same author

Single-photon frequency shifting with a quadrature phase-shift keying modulator.

Scientific reports·2021
Same author

Room-temperature photonic logical qubits via second-order nonlinearities.

Nature communications·2021
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: Dec 14, 2025

Lens-free Video Microscopy for the Dynamic and Quantitative Analysis of Adherent Cell Culture
09:04

Lens-free Video Microscopy for the Dynamic and Quantitative Analysis of Adherent Cell Culture

Published on: February 23, 2018

9.8K

Paraxial phasor-field physical optics.

Justin Dove, Jeffrey H Shapiro

    Optics Express
    |July 19, 2020
    PubMed
    Summary
    This summary is machine-generated.

    Phasor-field (P-field) imaging enables non-line-of-sight (NLoS) imaging by treating light envelopes as waves. This study demonstrates P-field imaging can use physical optics, like lenses, for NLoS tasks without heavy computation.

    More Related Videos

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    10.2K
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.5K

    Related Experiment Videos

    Last Updated: Dec 14, 2025

    Lens-free Video Microscopy for the Dynamic and Quantitative Analysis of Adherent Cell Culture
    09:04

    Lens-free Video Microscopy for the Dynamic and Quantitative Analysis of Adherent Cell Culture

    Published on: February 23, 2018

    9.8K
    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    10.2K
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.5K

    Area of Science:

    • Optics
    • Computational Imaging
    • Wave Physics

    Background:

    • Non-line-of-sight (NLoS) imaging allows visualization around obstacles.
    • Phasor-field (P-field) imaging computationally treats light envelopes as waves for NLoS tasks.
    • Current P-field imaging relies on complex computational methods.

    Purpose of the Study:

    • To demonstrate that P-field imaging can be achieved using physical optics.
    • To show that conventional lenses can manipulate P-fields for NLoS imaging.
    • To explore an alternative to computationally intensive NLoS techniques.

    Main Methods:

    • Mathematical demonstration of P-field manipulation with physical optics.
    • Analysis of lens-based focusing and projection of P-fields through diffusers.
    • Theoretical validation of imaging hidden scenes via P-field physical optics.

    Main Results:

    • P-field imaging can be performed using physical optical elements, such as lenses.
    • Lenses can focus and project P-fields through light-dispersing diffusers.
    • Physical optics approach enables imaging of scenes hidden by diffusers.

    Conclusions:

    • P-field imaging can be realized through physical optics, not just computation.
    • This approach offers a potential pathway for NLoS imaging with reduced computational load.
    • The findings pave the way for practical, lens-based NLoS imaging systems.