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

Space-Time Curvature and the General Theory of Relativity01:17

Space-Time Curvature and the General Theory of Relativity

3.5K
In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of...
3.5K
Torque Free Motion01:15

Torque Free Motion

617
The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
617
Mean free path and Mean free time01:22

Mean free path and Mean free time

4.3K
Consider the gas molecules in a cylinder. They move in a random motion as they collide with each other and change speed and direction. The average of all the path lengths between collisions is known as the "mean free path."
4.3K
Properties of DTFT I01:24

Properties of DTFT I

582
In signal processing, Discrete-Time Fourier Transforms (DTFTs) play a critical role in analyzing discrete-time signals in the frequency domain. Various properties of the DTFTs such as linearity, time-shifting, frequency-shifting, time reversal, conjugation, and time scaling help understand and manipulate these signals for different applications.
The linearity property of DTFTs is fundamental. If two discrete-time signals are multiplied by constants a and b respectively, and then combined to...
582
Space Trusses: Problem Solving01:29

Space Trusses: Problem Solving

706
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
706
Propagation of Waves01:07

Propagation of Waves

2.6K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
2.6K

You might also read

Related Articles

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

Sort by
Same author

Synthesis of Vinyl-Containing MQ Copolymers in Active Medium.

Polymers·2026
Same author

Optical cross-purity.

Optics letters·2026
Same author

Bridging the gap between ultrafast optics and resonant photonics in an omni-resonant Fabry-Pérot cavity.

Optics letters·2026
Same author

Observation of space-time surface plasmon polaritons.

Nature communications·2025
Same author

Disposable Foamed Silicone Composite Actuator Powered by Sublimation.

Polymers·2025
Same author

Resonance-free Fabry-Pérot cavity via unrestricted orbital-angular-momentum ladder-up.

Nature communications·2025
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: Oct 31, 2025

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
07:00

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite

Published on: March 11, 2020

7.6K

Temporal Talbot effect in free space.

Layton A Hall, Sergey Ponomarenko, Ayman F Abouraddy

    Optics Letters
    |July 1, 2021
    PubMed
    Summary
    This summary is machine-generated.

    Researchers demonstrate the temporal Talbot effect in free space, a phenomenon previously limited to optical fibers. This breakthrough utilizes unique space-time wave packets to control light pulse revivals outside of confined media.

    More Related Videos

    Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
    13:00

    Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

    Published on: January 23, 2017

    10.1K
    Author Spotlight: Exploring Light-Driven Chemical Reactions and Energy-Harnessing Devices in Photochemical Research
    08:12

    Author Spotlight: Exploring Light-Driven Chemical Reactions and Energy-Harnessing Devices in Photochemical Research

    Published on: February 16, 2024

    12.8K

    Related Experiment Videos

    Last Updated: Oct 31, 2025

    Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
    07:00

    Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite

    Published on: March 11, 2020

    7.6K
    Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
    13:00

    Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

    Published on: January 23, 2017

    10.1K
    Author Spotlight: Exploring Light-Driven Chemical Reactions and Energy-Harnessing Devices in Photochemical Research
    08:12

    Author Spotlight: Exploring Light-Driven Chemical Reactions and Energy-Harnessing Devices in Photochemical Research

    Published on: February 16, 2024

    12.8K

    Area of Science:

    • Optics and Photonics
    • Wave Phenomena
    • Nonlinear Optics

    Background:

    • The temporal Talbot effect involves periodic revivals of light pulse trains in dispersive media.
    • It is a time-domain analog of the spatial Talbot effect, driven by group-velocity dispersion.
    • Previously observed only in single-mode fibers due to long Talbot lengths.

    Purpose of the Study:

    • To demonstrate the temporal Talbot effect in free-space propagation.
    • To overcome the limitations of previous observations in optical fibers.
    • To explore novel methods for controlling light pulse dynamics.

    Main Methods:

    • Employing dispersive space-time wave packets.
    • Engineering the spatiotemporal structure of light.
    • Inducing controllable group-velocity dispersion in free space.

    Main Results:

    • Successfully observed the temporal Talbot effect in free space.
    • Demonstrated the ability to control the magnitude and sign of group-velocity dispersion.
    • Showcased the potential for manipulating pulse revivals without bulk media.

    Conclusions:

    • The temporal Talbot effect can be achieved in free space using engineered wave packets.
    • This opens new avenues for controlling light pulse dynamics and applications.
    • Dispersive space-time wave packets offer a versatile platform for fundamental optical studies.