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Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Interference and Superposition of Waves01:07

Interference and Superposition of Waves

When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
Interference: Path Lengths01:10

Interference: Path Lengths

Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Sound Waves: Interference00:53

Sound Waves: Interference

Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
Propagation of Waves01:07

Propagation of Waves

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...
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

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:

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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Coherent kaleidoscope I. Interference effects in a rectangular waveguide with point-source input.

B S Frost, P M Gourlay

    Applied Optics
    |September 24, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study presents computer calculations for radiation fields in rectangular waveguides, treating radiation as a point source. These findings are applicable to fiber-optic devices like power splitters and combiners.

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    Area of Science:

    • Electromagnetics and Optics
    • Waveguide Theory

    Background:

    • Understanding radiation propagation in waveguides is crucial for optical device design.
    • Previous models may not fully capture point-source radiation dynamics in rectangular waveguides.

    Purpose of the Study:

    • To perform computer calculations of the radiation field within a rectangular waveguide.
    • To model radiation introduced as an effective point source.
    • To explore applications in fiber-optic components.

    Main Methods:

    • Utilizing computational methods to simulate electromagnetic fields.
    • Analyzing the radiation field distribution from a point source.
    • Applying waveguide theory to model electromagnetic wave propagation.

    Main Results:

    • Detailed computer calculations of the radiation field are presented.
    • The behavior of radiation introduced as a point source is characterized.
    • The study provides a framework for analyzing waveguide radiation.

    Conclusions:

    • The computational model accurately describes radiation fields in rectangular waveguides.
    • The findings have direct implications for the design of fiber-optic power splitters and combiners.
    • This work facilitates advancements in optical device engineering.