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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.
X-ray Crystallography02:18

X-ray Crystallography

The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
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Related Experiment Video

Updated: Jun 8, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

Diffraction characteristics of surface-relief gratings.

M C Gupta, S T Peng

    Applied Optics
    |September 11, 2010
    PubMed
    Summary

    We studied how grating properties affect light polarization, finding gratings can split polarized light beams. This research aids in developing advanced optical storage devices.

    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Diffraction gratings are crucial optical components.
    • Understanding polarization effects is key for advanced optical systems.

    Purpose of the Study:

    • To investigate grating diffraction characteristics, focusing on polarization effects.
    • To develop multifunctional optical devices for optical storage pickup heads.

    Main Methods:

    • Theoretical analysis and experimental validation of grating diffraction.
    • Systematic study of grating parameters (depth, period, duty cycle) and incident wave parameters (angle, wavelength, polarization).
    • Numerical calculations and analysis of Floquet modes.

    Main Results:

    • Diffraction efficiency can reach 100% for both TE and TM polarizations at the Bragg angle.

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    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
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    Published on: May 15, 2017

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    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
    10:39

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    Published on: October 11, 2016

    Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
    12:08

    Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

    Published on: July 18, 2015

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
    06:26

    Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

    Published on: May 15, 2017

  • Demonstrated distinct diffraction behaviors for different polarizations due to Floquet modes.
  • Showcased the potential for gratings to split mixed polarization light beams.

    • Conclusions:

    • Suitably designed gratings can function as polarizing or nonpolarizing beam splitters.
    • Provided design criteria for grating structures based on numerical results.
    • This work contributes to the development of advanced optical storage technologies.