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Related Concept Videos

Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...
Standing Waves in a Cavity01:28

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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
Electromagnetic Waves01:30

Electromagnetic Waves

James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws of electricity and...
Van de Graaff Generator01:15

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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.
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Half wave rectifier01:20

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Related Experiment Video

Updated: Jul 8, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

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Published on: May 9, 2021

Electromagnetic bubble generation by half-cycle pulses.

A E Kaplan, S F Straub, P L Shkolnikov

    Optics Letters
    |March 15, 1997
    PubMed
    Summary
    This summary is machine-generated.

    Researchers explored how characteristics of electromagnetic bubbles (EMB

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    Generation and Coherent Control of Pulsed Quantum Frequency Combs
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    Published on: June 8, 2018

    Area of Science:

    • Nonlinear optics
    • Quantum optics
    • Plasma physics

    Background:

    • Electromagnetic bubbles (EMB's) are intense, solitary EM pulses.
    • They can be generated from nonlinear atomic gases using half-cycle pulses (HCP's).

    Purpose of the Study:

    • To investigate how EMB characteristics are controlled by originating HCP's.
    • To analyze the influence of HCP amplitude and length on EMB properties.

    Main Methods:

    • Numerical simulations of EM pulse propagation in nonlinear media.
    • Analysis of EMB parameters such as amplitude, length, and formation distance.

    Main Results:

    • EMB amplitude and length are directly controllable via HCP parameters.
    • Formation distance and total number of EMB's show distinct dependencies on HCP characteristics.
    • Prediction of shocklike wave fronts in multibubble scenarios.

    Conclusions:

    • HCP's offer a tunable method for generating and controlling EMB's.
    • Understanding these relationships is key for potential applications of EMB's.
    • The study reveals novel wave phenomena in nonlinear EM interactions.