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Title: Spatially-Heterodyned Holography

Abstract

A method of recording a spatially low-frequency heterodyne hologram, including spatially heterodyne fringes for Fourier analysis, includes: splitting a laser beam into a reference beam and an object beam; interacting the object beam with an object; focusing the reference beam and the object beam at a focal plane of a digital recorder to form a spatially low-frequency heterodyne hologram including spatially heterodyne fringes for Fourier analysis; digital recording the spatially low-frequency heterodyne hologram; Fourier transforming axes of the recorded spatially low-frequency heterodyne hologram including spatially heterodyne fringes in Fourier space to sit on top of a heterodyne carrier frequency defined by an angle between the reference beam and the object beam; cutting off signals around an origin; and performing an inverse Fourier transform.

Inventors:
 [1];  [2]
  1. Knoxville, TN
  2. Clinton, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
880004
Patent Number(s):
7002691
Application Number:
10/421448
Assignee:
UT-Battelle LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G03 - PHOTOGRAPHY G03H - HOLOGRAPHIC PROCESSES OR APPARATUS
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Thomas, Clarence E, and Hanson, Gregory R. Spatially-Heterodyned Holography. United States: N. p., 2006. Web.
Thomas, Clarence E, & Hanson, Gregory R. Spatially-Heterodyned Holography. United States.
Thomas, Clarence E, and Hanson, Gregory R. Tue . "Spatially-Heterodyned Holography". United States. https://www.osti.gov/servlets/purl/880004.
@article{osti_880004,
title = {Spatially-Heterodyned Holography},
author = {Thomas, Clarence E and Hanson, Gregory R},
abstractNote = {A method of recording a spatially low-frequency heterodyne hologram, including spatially heterodyne fringes for Fourier analysis, includes: splitting a laser beam into a reference beam and an object beam; interacting the object beam with an object; focusing the reference beam and the object beam at a focal plane of a digital recorder to form a spatially low-frequency heterodyne hologram including spatially heterodyne fringes for Fourier analysis; digital recording the spatially low-frequency heterodyne hologram; Fourier transforming axes of the recorded spatially low-frequency heterodyne hologram including spatially heterodyne fringes in Fourier space to sit on top of a heterodyne carrier frequency defined by an angle between the reference beam and the object beam; cutting off signals around an origin; and performing an inverse Fourier transform.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {2}
}

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Works referenced in this record:

A software package for the processing and reconstruction of electron holograms
journal, October 1995


Wavefront Reconstruction with Diffused Illumination and Three-Dimensional Objects*
journal, January 1964


Fracional–Fringe Holographic Plasma Interferometry
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Reconstructed Wavefronts and Communication Theory*
journal, January 1962


Holographic Interferometry
journal, February 1966


Wavefront Reconstruction with Continuous-Tone Objects*
journal, January 1963


The extended Fourier algorithm: Application in discrete optics and electron holography
journal, January 1994