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Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

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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.
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Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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Interference: Path Lengths01:10

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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...
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Interference and Superposition of Waves01:07

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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,...
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Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

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Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
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Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

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In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
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Related Experiment Video

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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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[Nonlalocalized interference in multiple-beam interferometer].

Hai-Liang Chen1, Shu-Guang Li2, Suo-Ming Wang2

  • 1College of Science, Yanshan University, Qinhuangdao 066004, China. hlchen@ysu.edu.cn

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|March 12, 2014
PubMed
Summary

Researchers explored nonlocalized interference in multiple-beam interferometers, finding that higher reflection coefficients sharpen interference fringes but increase noise. Mirror spacing can be accurately determined through analysis of interference patterns and their relationship with screen distance.

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Area of Science:

  • Optics and Photonics
  • Interferometry

Context:

  • Investigating nonlocalized interference in multiple-beam interferometers.
  • Analyzing the light intensity distribution function.
  • Utilizing numerical simulation methods for detailed analysis.

Purpose:

  • To obtain the light intensity distribution function for nonlocalized interference.
  • To understand the relationship between reflection coefficient and interference pattern characteristics.
  • To explore the correlation between interference index, angle, and mirror spacing.

Summary:

  • The light intensity distribution function in the circle center mirrors that of localized interference.
  • Increased reflection coefficients sharpen interference fringes and improve resolution but introduce noise.
  • A linear relationship exists between the interference index and the cosine of the interference stripe dip angle, allowing mirror spacing determination via slope analysis.

Impact:

  • Provides a method for determining mirror spacing through optical interference analysis.
  • Offers insights into optimizing interferometer performance by managing reflection coefficients.
  • Enhances understanding of nonlocalized interference phenomena and their practical applications in optical metrology.