Acquisition and replay systems for direct-to-digital holography and holovision

Thomas, Clarence E; Hanson, Gregory R

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Title: Acquisition and replay systems for direct-to-digital holography and holovision

Abstract

Improvements to the acquisition and replay systems for direct-to-digital holography and holovision are described. A method of recording an off-axis hologram includes: splitting a laser beam into an object beam and a reference beam; reflecting the reference beam from a reference beam mirror; reflecting the object beam from an illumination beamsplitter; passing the object beam through an objective lens; reflecting the object beam from an object; focusing the reference beam and the object beam at a focal plane of a digital recorder to form an off-axis hologram; digitally recording the off-axis hologram; and transforming the off-axis hologram in accordance with a Fourier transform to obtain a set of results. A method of writing an off-axis hologram includes: passing a laser beam through a spatial light modulator; and focusing the laser beam at a focal plane of a photorefractive crystal to impose a holographic diffraction grating pattern on the photorefractive crystal. A method of replaying an off-axis hologram includes: illuminating a photorefractive crystal having a holographic diffraction grating with a replay beam.

Inventors:

Thomas, Clarence E ^[1]; Hanson, Gregory R ^[2]

Knoxville, TN
Clinton, TN

Issue Date:: 2003-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 875078

Patent Number(s):: 6525821

Application Number:: 09/477267

Assignee:: UT-Battelle, L.L.C. (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

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G - PHYSICS G03 - PHOTOGRAPHY G03H - HOLOGRAPHIC PROCESSES OR APPARATUS
G03H1/02 - Details {of features involved during the holographic process
G03H1/0891 - {Processes or apparatus adapted to convert digital holographic data into a hologram
G03H2001/0066 - {for wavefront matching wherein the hologram is arranged to convert a predetermined wavefront into a comprehensive wave, e.g. associative memory
G03H1/2294 - {Addressing the hologram to an active spatial light modulator}
G03H2210/30 - 3D object
G03H2001/0456 - {Spatial heterodyne, i.e. filtering a Fourier transform of the off-axis record}
G03H1/22 - Processes or apparatus for obtaining an optical image from holograms
G03H1/0866 - {Digital holographic imaging, i.e. synthesizing holobjects from holograms}

G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G01B9/021 - using holographic techniques

G - PHYSICS G03 - PHOTOGRAPHY G03H - HOLOGRAPHIC PROCESSES OR APPARATUS
G03H2001/0088 - {for video-holography, i.e. integrating hologram acquisition, transmission and display}
G03H1/0443 - {Digital holography, i.e. recording holograms with digital recording means
G03H2001/0033 - {in hologrammetry for measuring or analysing}
G03H2222/18 - RGB trichrome light
G03H2001/2263 - {Multicoloured holobject}
G03H2001/005 - {in microscopy, e.g. digital holographic microscope [DHM]
G03H2226/11 - Electro-optic recording means, e.g. CCD, pyroelectric sensors
G03H1/2249 - {Holobject properties}
G03H1/0406 - {Image plane or focused image holograms, i.e. an image of the object or holobject is formed on, in or across the recording plane}

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DOE Contract Number:: AC05-96OR22464

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: acquisition; replay; systems; direct-to-digital; holography; holovision; improvements; described; method; recording; off-axis; hologram; splitting; laser; beam; reference; reflecting; mirror; illumination; beamsplitter; passing; objective; lens; focusing; focal; plane; digital; recorder; form; digitally; transforming; fourier; transform; obtain; set; results; writing; spatial; light; modulator; photorefractive; crystal; impose; holographic; diffraction; grating; pattern; replaying; illuminating; laser beam; fourier transform; /356/359/

Citation Formats


                    Thomas, Clarence E, and Hanson, Gregory R. Acquisition and replay systems for direct-to-digital holography and holovision.  United States: N. p., 2003. 
        Web.

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                    Thomas, Clarence E, & Hanson, Gregory R. Acquisition and replay systems for direct-to-digital holography and holovision.  United States.

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                    Thomas, Clarence E, and Hanson, Gregory R. Wed .  
        "Acquisition and replay systems for direct-to-digital holography and holovision".  United States.  https://www.osti.gov/servlets/purl/875078.

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@article{osti_875078,

  title        = {Acquisition and replay systems for direct-to-digital holography and holovision},

  author       = {Thomas, Clarence E and Hanson, Gregory R},

  abstractNote = {Improvements to the acquisition and replay systems for direct-to-digital holography and holovision are described. A method of recording an off-axis hologram includes: splitting a laser beam into an object beam and a reference beam; reflecting the reference beam from a reference beam mirror; reflecting the object beam from an illumination beamsplitter; passing the object beam through an objective lens; reflecting the object beam from an object; focusing the reference beam and the object beam at a focal plane of a digital recorder to form an off-axis hologram; digitally recording the off-axis hologram; and transforming the off-axis hologram in accordance with a Fourier transform to obtain a set of results. A method of writing an off-axis hologram includes: passing a laser beam through a spatial light modulator; and focusing the laser beam at a focal plane of a photorefractive crystal to impose a holographic diffraction grating pattern on the photorefractive crystal. A method of replaying an off-axis hologram includes: illuminating a photorefractive crystal having a holographic diffraction grating with a replay beam.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {1}

}

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Works referenced in this record:

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

VÖLkl, E.; Allard, L. F.; Frost, B.
Journal of Microscopy, Vol. 180, Issue 1
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Wavefront Reconstruction with Diffused Illumination and Three-Dimensional Objects*
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Leith, Emmett N.; Upatnieks, Juris
Journal of the Optical Society of America, Vol. 54, Issue 11
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Fracional–Fringe Holographic Plasma Interferometry
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Jahoda, F. C.; Jeffries, R. A.; Sawyer, G. A.
Applied Optics, Vol. 6, Issue 8
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Advanced electron holography: a new algorithm for image processing and a standardized quality test for the FEG electron microscope
journal, April 1995

Völkl, E.; Allard, L. F.; Datye, A.
Ultramicroscopy, Vol. 58, Issue 1
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Reconstructed Wavefronts and Communication Theory*
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Leith, Emmett N.; Upatnieks, Juris
Journal of the Optical Society of America, Vol. 52, Issue 10
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Wavefront Reconstruction with Continuous-Tone Objects*
journal, January 1963

Leith, Emmett N.; Upatnieks, Juris
Journal of the Optical Society of America, Vol. 53, Issue 12
https://doi.org/10.1364/JOSA.53.001377

Holographic Interferometry
journal, February 1966

Heflinger, L. O.; Wuerker, R. F.; Brooks, R. E.
Journal of Applied Physics, Vol. 37, Issue 2
https://doi.org/10.1063/1.1708231

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

Voelkl, E.; Allard, L. F.
Proceedings, annual meeting, Electron Microscopy Society of America, Vol. 52
https://doi.org/10.1017/S0424820100172322

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Similar Records

Title: Acquisition and replay systems for direct-to-digital holography and holovision

Abstract

Citation Formats

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 journal, January 1967

Advanced electron holography: a new algorithm for image processing and a standardized quality test for the FEG electron microscope journal, April 1995

Reconstructed Wavefronts and Communication Theory* journal, January 1962

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

Holographic Interferometry journal, February 1966

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

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
journal, January 1967

Advanced electron holography: a new algorithm for image processing and a standardized quality test for the FEG electron microscope
journal, April 1995

Reconstructed Wavefronts and Communication Theory*
journal, January 1962

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

Holographic Interferometry
journal, February 1966

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