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Title: Spatial-heterodyne interferometry for transmission (SHIFT) measurements

Abstract

Systems and methods are described for spatial-heterodyne interferometry for transmission (SHIFT) measurements. A method includes digitally recording a spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis using a reference beam, and an object beam that is transmitted through an object that is at least partially translucent; Fourier analyzing the digitally recorded spatially-heterodyned hologram, by shifting an original origin of the digitally recorded spatially-heterodyned hologram to sit on top of a spatial-heterodyne carrier frequency defined by an angle between the reference beam and the object beam, to define an analyzed image; digitally filtering the analyzed image to cut off signals around the original origin to define a result; and performing an inverse Fourier transform on the result.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175941
Patent Number(s):
7119905
Application Number:
10/649,251
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
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Bingham, Philip R., Hanson, Gregory R., and Tobin, Ken W.. Spatial-heterodyne interferometry for transmission (SHIFT) measurements. United States: N. p., 2006. Web.
Bingham, Philip R., Hanson, Gregory R., & Tobin, Ken W.. Spatial-heterodyne interferometry for transmission (SHIFT) measurements. United States.
Bingham, Philip R., Hanson, Gregory R., and Tobin, Ken W.. Tue . "Spatial-heterodyne interferometry for transmission (SHIFT) measurements". United States. https://www.osti.gov/servlets/purl/1175941.
@article{osti_1175941,
title = {Spatial-heterodyne interferometry for transmission (SHIFT) measurements},
author = {Bingham, Philip R. and Hanson, Gregory R. and Tobin, Ken W.},
abstractNote = {Systems and methods are described for spatial-heterodyne interferometry for transmission (SHIFT) measurements. A method includes digitally recording a spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis using a reference beam, and an object beam that is transmitted through an object that is at least partially translucent; Fourier analyzing the digitally recorded spatially-heterodyned hologram, by shifting an original origin of the digitally recorded spatially-heterodyned hologram to sit on top of a spatial-heterodyne carrier frequency defined by an angle between the reference beam and the object beam, to define an analyzed image; digitally filtering the analyzed image to cut off signals around the original origin to define a result; and performing an inverse Fourier transform on the result.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {10}
}

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