Skip to main content
U.S. flag

An official website of the United States government

A Toolbox for Isophase-Curvature Guided Computation of Metrology Holograms

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: August 26, 2026 at 09:45 PM | Dataset Last Updated: February 04, 2020
An open-source numerical toolbox , written in the Octave language, for the creation of computer-generated binary and multi-level holograms used in interferometric form error measurements of complex aspheric and free-form precision surfaces and optical wavefronts. In a typical measurement setup for this type of surface, a hologram is used to generate a test wavefront that has the design shape of the surface, which is then compared to a fabricated part using an imaging laser interferometer.

Resources

13 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "006:55"
]
contactPoint 
{
  "fn": "Ulf Griesmann",
  "hasEmail": "mailto:ulf.griesmann@nist.gov"
}
description An open-source numerical toolbox , written in the Octave language, for the creation of computer-generated binary and multi-level holograms used in interferometric form error measurements of complex aspheric and free-form precision surfaces and optical wavefronts. In a typical measurement setup for this type of surface, a hologram is used to generate a test wavefront that has the design shape of the surface, which is then compared to a fabricated part using an imaging laser interferometer.
distribution 
[
  {
    "title": "DOI Access for A Toolbox for Isophase-Curvature Guided Computation of Metrology Holograms",
    "accessURL": "https://doi.org/10.18434/M32177"
  },
  {
    "title": "User Manual for the CGH Toolbox",
    "format": "Compressed file archive",
    "mediaType": "application/x-zip-compressed",
    "description": "A user manual describing the key functions of the CGH toolbox and a set of examples that illustrate the use of the toolbox.",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-23.zip"
  },
  {
    "title": "GDSII Toolbox",
    "format": "Compressed archive.",
    "mediaType": "application/x-zip-compressed",
    "description": "An Octave / Matlab toolbox of functions to generate lithographic layout files suitable for transmission to a fabrication foundry. Required by the CGH toolbox.",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/gdsii-toolbox-145.zip"
  },
  {
    "title": "Polygon toolbox",
    "format": "Compressed archive",
    "mediaType": "application/x-zip-compressed",
    "description": "An Octave / Matlab toolbox with polygon related functions. Required by the CGH toolbox.",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/polygon-toolbox-6.zip"
  },
  {
    "title": "CGH Toolbox Manual and Examples",
    "format": "Compressed archive in .zip format",
    "mediaType": "application/zip",
    "description": "Manual version of April 27, 2020 with example code",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-24.zip"
  },
  {
    "title": "CGH Toolbox Manual",
    "format": "Portable Document Format (PDF)",
    "mediaType": "application/pdf",
    "description": "Manual version of April 27, 2020",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/CGH_toolbox_manual_27apr2020.pdf"
  },
  {
    "title": "CGH Toolbox",
    "format": "Compressed archive of Octave .m files",
    "mediaType": "application/x-zip-compressed",
    "description": "Toolbox for the calculation of metrology holograms needed in precision surface metrology with optical interferometry",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox-181.zip"
  },
  {
    "title": "SHA256 File for CGH Toolbox Manual",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/CGH_toolbox_manual_27apr2020.pdf.sha256"
  },
  {
    "title": "SHA256 File for CGH Toolbox",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox-181.zip.sha256"
  },
  {
    "title": "SHA256 File for User Manual for the CGH Toolbox",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-23.zip.sha256"
  },
  {
    "title": "SHA256 File for CGH Toolbox Manual and Examples",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-24.zip.sha256"
  },
  {
    "title": "SHA256 File for GDSII Toolbox",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/gdsii-toolbox-145.zip.sha256"
  },
  {
    "title": "SHA256 File for Polygon toolbox",
    "mediaType": "text/plain",
    "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/polygon-toolbox-6.zip.sha256"
  }
]
identifier ark:/88434/mds2-2177
issued 2020-02-18
keyword 
[
  "aspheric surfaces",
  "computer-generated hologram",
  "diffractive optics",
  "freeform surfaces",
  "lithographic layout",
  "optical interferometry",
  "surface metrology"
]
language 
[
  "en"
]
license https://www.nist.gov/open/license
modified 2020-02-04 00:00:00
programCode 
[
  "006:045"
]
publisher 
{
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
theme 
[
  "Metrology:Dimensional metrology",
  "Metrology:Optical, photometry, and laser metrology",
  "Physics:Optical physics"
]
title A Toolbox for Isophase-Curvature Guided Computation of Metrology Holograms

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov