A Toolbox for Isophase-Curvature Guided Computation of Metrology Holograms

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.

Resources

Name Format Description Link
0 A user manual describing the key functions of the CGH toolbox and a set of examples that illustrate the use of the toolbox. https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-23.zip
47 https://data.nist.gov/od/ds/mds2-2177/polygon-toolbox-6.zip.sha256
0 An Octave / Matlab toolbox with polygon related functions. Required by the CGH toolbox. https://data.nist.gov/od/ds/mds2-2177/polygon-toolbox-6.zip
0 An Octave / Matlab toolbox of functions to generate lithographic layout files suitable for transmission to a fabrication foundry. Required by the CGH toolbox. https://data.nist.gov/od/ds/mds2-2177/gdsii-toolbox-145.zip
0 https://doi.org/10.18434/M32177
47 https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-24.zip.sha256
0 Manual version of April 27, 2020 with example code https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-24.zip
47 https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox-181.zip.sha256
0 Toolbox for the calculation of metrology holograms needed in precision surface metrology with optical interferometry https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox-181.zip
47 https://data.nist.gov/od/ds/mds2-2177/CGH_toolbox_manual_27apr2020.pdf.sha256
0 Manual version of April 27, 2020 https://data.nist.gov/od/ds/mds2-2177/CGH_toolbox_manual_27apr2020.pdf
47 https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-23.zip.sha256
47 https://data.nist.gov/od/ds/mds2-2177/gdsii-toolbox-145.zip.sha256

Tags

  • lithographic-layout
  • freeform-surfaces
  • aspheric-surfaces
  • optical-interferometry
  • surface-metrology
  • diffractive-optics
  • computer-generated-hologram

Topics

Categories