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Raytheon SAS/NCS, El Segundo, CA

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Bibliography: Archival papers describing a variety of applications of the MFT for surface roughness

“Calculating BTDF from window surface roughness”, J. Stover, et. al., The Scatter Works, College of Optical Sciences, Univ. of Arizona and Moscow State University, Proc. SPIE 883804, doi:10.1117/12.2024599. Paper discusses the use of the MFT to take surface topography maps of window and lens surfaces.
“Fabrication and testing of 4.2m off-axis aspheric primary mirror of Daniel K. Inouye Solar Telescope”, C. J. Oh, et. al., College of Optical Sciences, Univ. of Arizona, Proc. SPIE 99120O, doi:10.1117/12.2229324. Paper shows the use of the MFT to measure the surface topography of the mirror by setting the MFT directly on the surface of the mirror while on the polishing machine.
“Final acceptance testing of the LSST monolithic primary/tertiary mirror”, M. Tuell, et. al., Steward Observatory, Univ. of Arizona and National Optical Astronomy Observatory, Proc. SPIE 91510W, doi:10.1117/12.2057076. Paper discusses the use of the MFT to measure the surface roughness directly on the mirror surface.
“Ion beam figuring of thin glass plates: achievements and perspectives”, M. Civitani, et. al., INAF Astronomical Observatory of Brera, Proc. SPIE 990578, doi:10.1117/12.2233821. Paper discusses the use of the MFT to monitor the in-process surface roughness of large, thin glass samples during ion beam figuring.
“Manufacturing of super-polished large aspheric/freeform optics”, D. W. Kim, et. al., ., College of Optical Sciences and Steward Observatory, Univ. of Arizona, Proc. SPIE 99120O, doi:10.1117/12.2229324. Paper shows direct surface roughness PSD measurements made with the MFT on the mirror surface are in good agreement with PSD measurements made with other instruments at larger spatial scales.
“Point spread function computation in normal incidence for rough optical surfaces”, K. Tayabaly, et. al., INAF/Brera Astronomical Observatory and Politecnico di Milano, Proc. SPIE 99111X, doi:10.1117/12.2232320. Paper discusses the use of the MFT to help verify the theoretical calculations of the psf at small physical dimensions.
“Polishing and testing of the 3.4 m diameter f/1.5 primary mirror of the INO telescope”, T. Korhonen, et. al., Opteon Oy, Finland and Iran and Iranian National Observatory, Proc. SPIE 99120Q, doi:10.1117/12.2232691. Paper discusses the use of the MFT to show that the finished mirror met the specification for surface roughness by direct measurement on the mirror while still on the polishing machine.
“Roughness tolerances for Cherenkov telescope mirrors”, K. Tayabaly, et. al., INAF/Brera Astronomical Observatory and Politecnico di Milano, Proc SPIE 960307, doi: 10.1117/12.2187025. Paper describes the use of the MFT to directly measure the surface roughness of large, thin mirrors including diamond turned and dielectric coated ones by setting the MFT on the mirror surface.
“Simulation and modeling of silicon pore optics for the ATHENA X-ray telescope”, D. Spiga, et. al., INAF/Brera Astronomical Observator, Politecnico di Milano, DTU Space, Techn. Univ. of Denmark, and European Space Agency, ESTEC, Proc SPIE 990550, doi: 10.1117/12.2232230. Paper shows that surface roughness measurements made with the MFT match up well with AFM measurements made at finer spatial scales.
“Super-smooth optical fabrication controlling high-spatial frequency surface irregularity”, J. Del Hoyo, College of Optical Sciences, Univ. of Arizona, Proc. SPIE 88380T, doi:10.1117/12.2022924. Paper shows the use of the MFT to monitor surface roughness and degree of polish as a function of polishing compound and time through direct surface measurement while the optic is still on the polishing machine.
“Use of the surface PSD and incident angle adjustments to investigate near specular scatter from smooth surfaces”, K. Tayabaly and J. Stover, College of Optical Sciences, Univ. of Arizona and The Scatter Works, Proc. SPIE 883805, doi:10.1117/12.2024612. Paper discusses the match between surface roughness measured with the MFT and BRDF scatter measurements. In cases where scatter cannot be measured directly because it is too close to specular or the substrate material scatters, surface roughness measurements can be used in lieu of scatter.

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