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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.
IR Spectrometers01:25

IR Spectrometers

There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

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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Related Experiment Video

Updated: Jun 16, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
12:14

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Modified Young's Interferometer.

J J Snyder, T O Carroll

    Applied Optics
    |January 30, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A novel interferometer precisely measures the distance between closely spaced slits or lines. This advanced instrument achieves a remarkable 5-nanometer resolution for slit position measurements.

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    A Multimodal Wide-Field Fourier-Transform Raman Microscope

    Published on: December 30, 2025

    Related Experiment Videos

    Last Updated: Jun 16, 2026

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    A Multimodal Wide-Field Fourier-Transform Raman Microscope
    06:48

    A Multimodal Wide-Field Fourier-Transform Raman Microscope

    Published on: December 30, 2025

    Area of Science:

    • Optics and Photonics
    • Metrology and Measurement Science

    Background:

    • Accurate measurement of fine separations is crucial in various scientific and industrial applications.
    • Traditional methods may lack the precision required for sub-micron scale separations.

    Purpose of the Study:

    • To present a modified Young's two-slit interferometer for measuring separations of nearly coincident slits or lines.
    • To introduce an automatic, interferometric micrometer prototype.

    Main Methods:

    • Utilizing a modified Young's two-slit interferometer setup.
    • Developing a prototype instrument functioning as an automatic interferometric micrometer.

    Main Results:

    • The instrument successfully measures the separation between centers of slits or lines.
    • Achieved a high resolution of 5 nanometers in slit position measurement.

    Conclusions:

    • The developed interferometric micrometer offers high-precision measurement capabilities.
    • This technology has potential applications in fields requiring nanoscale metrology.