{"@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": [{"accessURL": "https://doi.org/10.18434/M32177", "title": "DOI Access for A Toolbox for Isophase-Curvature Guided Computation of Metrology Holograms"}, {"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", "format": "Compressed file archive", "mediaType": "application/x-zip-compressed", "title": "User Manual for the CGH Toolbox"}, {"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", "format": "Compressed archive.", "mediaType": "application/x-zip-compressed", "title": "GDSII Toolbox"}, {"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", "format": "Compressed archive", "mediaType": "application/x-zip-compressed", "title": "Polygon toolbox"}, {"description": "Manual version of April 27, 2020 with example code", "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-24.zip", "format": "Compressed archive in .zip format", "mediaType": "application/zip", "title": "CGH Toolbox Manual and Examples"}, {"description": "Manual version of April 27, 2020", "downloadURL": "https://data.nist.gov/od/ds/mds2-2177/CGH_toolbox_manual_27apr2020.pdf", "format": "Portable Document Format (PDF)", "mediaType": "application/pdf", "title": "CGH Toolbox Manual"}, {"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", "format": "Compressed archive of Octave .m files", "mediaType": "application/x-zip-compressed", "title": "CGH Toolbox"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2177/CGH_toolbox_manual_27apr2020.pdf.sha256", "mediaType": "text/plain", "title": "SHA256 File for CGH Toolbox Manual"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox-181.zip.sha256", "mediaType": "text/plain", "title": "SHA256 File for CGH Toolbox"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-23.zip.sha256", "mediaType": "text/plain", "title": "SHA256 File for User Manual for the CGH Toolbox"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2177/cgh-toolbox_manual-24.zip.sha256", "mediaType": "text/plain", "title": "SHA256 File for CGH Toolbox Manual and Examples"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2177/gdsii-toolbox-145.zip.sha256", "mediaType": "text/plain", "title": "SHA256 File for GDSII Toolbox"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-2177/polygon-toolbox-6.zip.sha256", "mediaType": "text/plain", "title": "SHA256 File for Polygon toolbox"}], "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": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "theme": ["Metrology:Dimensional metrology", "Metrology:Optical, photometry, and laser metrology", "Physics:Optical physics"], "title": "A Toolbox for Isophase-Curvature Guided Computation of Metrology Holograms"}