Dr. Aric B. Shorey Profile

Dr. Aric B. Shorey

at Mosaic Microsystems LLC

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 28 April 2009 Paper

Technologies for precision manufacture of current and future windows and domes

Bob Hallock, Aric Shorey

Proceedings Volume 7302, 73020V (2009) https://doi.org/10.1117/12.818864

KEYWORDS: Surface finishing, Polishing, Sapphire, Magnetorheological finishing, Wavefronts, Photovoltaics, Principal component analysis, Metrology, Interferometers, Manufacturing

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Proceedings Article | 14 May 2007 Paper

Advances in finishing using magnetorheological (MR) jet technology

Justin Tracy, William Kordonski, Aric Shorey, Marc Tricard

Proceedings Volume 10316, 103160F (2007) https://doi.org/10.1117/12.718079

KEYWORDS: Polishing, Surface finishing, Magnetism, Collimation, Optical design, Abrasives, Principal component analysis, Spindles, Spherical lenses, Plano

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Proceedings Article | 2 May 2007 Paper

Developments in the finishing of domes and conformal optics

Aric Shorey, William Kordonski, Justin Tracy, Marc Tricard

Proceedings Volume 6545, 65450Q (2007) https://doi.org/10.1117/12.717584

KEYWORDS: Polishing, Magnetorheological finishing, Aspheric lenses, Surface finishing, Interferometers, Domes, Metrology, Optical spheres, Freeform optics, Fringe analysis

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Proceedings Article | 6 July 2006 Paper

Cost-effective subaperture approaches to finishing and testing astronomical optics

Marc Tricard, Aric Shorey, Bob Hallock, Paul Murphy

Proceedings Volume 6273, 62730L (2006) https://doi.org/10.1117/12.672385

KEYWORDS: Magnetorheological finishing, Polishing, Surface finishing, Mirrors, Optics manufacturing, Interferometers, Aspheric lenses, Metrology, Optical spheres, Photovoltaics

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The fabrication and metrology of astronomical optics are very demanding tasks. In particular, the large sizes needed for astronomical optics and mirrors present significant manufacturing challenges. One of the long-lead aspects (and primary cost drivers) of this process has traditionally been the final polishing and metrology steps. Furthermore, traditional polishing becomes increasingly difficult if the optics are aspheric and/or lightweight. QED Technologies (QED(r)) has developed two novel technologies that have had a significant impact on the production of precision optics. Magnetorheological Finishing (MRF(r)) is a deterministic, production proven, sub-aperture polishing process that can enable significant reductions in cost and lead-time in the production of large optics. MRF routinely achieves surface figure accuracy of better than 30 nm peak-to-valley (better than 5 nm rms) and microroughness better than 1 nm rms on a variety of glasses, glass ceramics and ceramic materials. Unique characteristics of MRF such as a comparatively high, stable removal rate, the conformal nature of the sub-aperture tool and a shear-mode material removal mechanism give it advantages in finishing large and lightweight optics. QED has, for instance, developed the Q22-950F MRF platform which is capable of finishing meter-class optics and the fundamental technology is scalable to even larger apertures. Using MRF for large optics is ideally partnered by a flexible metrology system that provides full aperture metrology of the surface to be finished. A method that provides significant advantages for mirror manufacturing is to characterize the full surface by stitching an array of sub-aperture measurements. Such a technique inherently enables the testing of larger apertures with higher resolution and typically higher accuracy. Furthermore, stitching lends itself to a greater range of optical surfaces that can be measured in a single setup. QED's Subaperture Stitching Interferometer (SSI(r)) complements MRF by extending the effective aperture, accuracy, resolution, and dynamic range of a standard phase-shifting interferometer. This paper will describe these novel approaches to large optics finishing, and present a variety of examples.

Proceedings Article | 19 May 2006 Paper

Extending the application of subaperture finishing

Marc Tricard, Aric Shorey, Paul Dumas, Mike Demarco

Proceedings Volume 6150, 61501K (2006) https://doi.org/10.1117/12.676838

KEYWORDS: Polishing, Magnetorheological finishing, Surface finishing, Wavefronts, Photovoltaics, Aspheric lenses, Magnetism, Prisms, Subaperture finishing, Optics manufacturing

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Proceedings Article | 25 October 2005 Paper

Recent advances in subaperture finishing

Marc Tricard, Aric Shorey, Paul Dumas

Proceedings Volume 5965, 59650L (2005) https://doi.org/10.1117/12.625807

KEYWORDS: Magnetorheological finishing, Polishing, Surface finishing, Aspheric lenses, Single point diamond turning, Photovoltaics, Wavefronts, Silicon, Optics manufacturing, Manufacturing

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Proceedings Article | 19 August 2005 Paper

Cycle time and cost reduction in large-size optics production

Bob Hallock, Aric Shorey, Tom Courtney

Proceedings Volume 5869, 58690D (2005) https://doi.org/10.1117/12.617779

KEYWORDS: Polishing, Magnetorheological finishing, Surface finishing, Optics manufacturing, Mirrors, Abrasives, Glasses, Aspheric lenses, Optical fabrication, Lightweight mirrors

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Proceedings Article | 18 August 2005 Paper

Jet-induced high-precision finishing of challenging optics

William Kordonski, Aric Shorey, Marc Tricard

Proceedings Volume 5869, 586909 (2005) https://doi.org/10.1117/12.617306

KEYWORDS: Polishing, Surface finishing, Glasses, Photovoltaics, Magnetism, Spherical lenses, Sapphire, Aluminum, Abrasives, Collimation

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Proceedings Article | 18 May 2005 Paper

Deterministic precision finishing of domes and conformal optics

Aric Shorey, William Kordonski, Marc Tricard

Proceedings Volume 5786, (2005) https://doi.org/10.1117/12.607456

KEYWORDS: Polishing, Magnetorheological finishing, Surface finishing, Metrology, Interferometers, Optics manufacturing, Aspheric lenses, Domes, Optical spheres, Magnetism

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Proceedings Article | 18 May 2005 Paper

Recent advances in deterministic low-cost finishing of sapphire windows

Bob Hallock, Paul Dumas, Aric Shorey, Marc Tricard

Proceedings Volume 5786, (2005) https://doi.org/10.1117/12.603930

KEYWORDS: Magnetorheological finishing, Polishing, Surface finishing, Sapphire, Wavefronts, Abrasives, Particles, Interferometers, Surface roughness, Magnetism

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Proceedings Article | 18 October 2004 Paper

Magnetorheological finishing of large and lightweight optics

Aric Shorey, William Kordonski, Marc Tricard

Proceedings Volume 5533, (2004) https://doi.org/10.1117/12.559814

KEYWORDS: Magnetorheological finishing, Polishing, Surface finishing, Mirrors, Lightweight mirrors, Optics manufacturing, Abrasives, Particles, Silicon carbide, Crystals

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Proceedings Article | 24 September 2004 Paper

Magnetorheological finishing and subaperture stitching interferometry of large and lightweight optics

Aric Shorey, William Kordonski, Marc Tricard

Proceedings Volume 5494, (2004) https://doi.org/10.1117/12.550997

KEYWORDS: Magnetorheological finishing, Polishing, Mirrors, Surface finishing, Optics manufacturing, Aspheric lenses, Lightweight mirrors, Interferometers, Stitching interferometry, Calibration

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Significant challenges are faced in the manufacturing of the complex optics for the next generation of astronomical telescopes. Process improvements are required to establish cost effective techniques to finish the optics to the tight specification required in a timely manner. An added complication is realized when the optics are lightweight. The non-uniform support of the face-sheet in this case requires special efforts to avoid a print-through of the cell structure due to fabrication processes, gravity and/or cryogenic effects. Magnetorheological finishing (MRF) is a deterministic, sub-aperture polishing process that has been a revolutionary success in the fabrication of optics in the size range of 10-1000 mm. This production proven process is capable of polishing flats, spheres, aspheres and cylinders to a surface figure accuracy of better than 30 nm peak-to-valley (better than 5 nm rms), and microroughness better than 1 nm rms on a variety of glasses, glass ceramics and single crystal materials. Unique characteristics of MRF such as a high, stable removal rate, conformal nature of the sub-aperture tool and shear mode of material removal give it advantages in the finishing of large and lightweight optics. These qualities provide for a cost-effective process with a high rate of convergence that requires few iterations. Such a technology is ideally complemented by a system for the stitching of interferometric sub-aperture data. Stitching inherently enables the testing of larger apertures with higher resolution and, thanks to the built-in calibration, even to higher accuracy in many situations. While this approach enables the non-null testing of parts with greater aspheric departure and can lead to a significantly reduced non-common air path in the testing of long-radius concave parts, it is especially effective for convex optics. That is, stitching is particularly well suited to the testing of secondary mirrors and, alongside the testing of the off-axis primary segments.