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Related Experiment Video

Updated: Jun 13, 2026

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

Bragg cell diffraction patterns.

A Vanderlugt1

  • 1Harris Corporation, Advanced Technology Department, P.O. Box 37, Melbourne, Florida 32901, USA.

Applied Optics
|April 15, 2010
PubMed
Summary
This summary is machine-generated.

Curved singularity functions characterize 2-D diffraction patterns in Bragg cells. Their curvature, influenced by wavelengths and material anisotropy, impacts signal processing, increasing sidelobes and reducing resolution in spectrum analyzers.

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Last Updated: Jun 13, 2026

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Area of Science:

  • Acousto-optics
  • Signal Processing
  • Diffraction Theory

Background:

  • Bragg cells are crucial acousto-optic devices used in signal processing.
  • Their diffraction patterns are fundamental to device performance.
  • Understanding these patterns is key to optimizing signal analysis.

Purpose of the Study:

  • To characterize the 2-D diffraction patterns of fully illuminated Bragg cells.
  • To derive analytical expressions for the singularity functions describing these patterns.
  • To assess the impact of nonideal diffraction on signal processing applications.

Main Methods:

  • Characterization of 2-D diffraction patterns using curved singularity functions.
  • Derivation of analytical expressions for these singularity functions.
  • Calculation of the impact of nonideal diffraction patterns on signal processing.

Main Results:

  • Diffraction patterns are characterized by curved singularity functions.
  • Curvature depends on optical wavelength, acoustic wavelength, and material anisotropy.
  • Nonideal patterns increase sidelobe levels and slightly reduce resolution in spectrum analyzers.

Conclusions:

  • Analytical expressions for singularity functions provide insight into Bragg cell diffraction.
  • Nonideal diffraction patterns degrade performance in spectrum analyzers.
  • Pattern truncation or line illumination can mitigate performance degradation.