Arizona Optical Metrology products

Metrology solutions purpose-built for optics fabrication, from volume production to one-off optics.

Computer-Generated Holograms (CGHs) serve as precision optical elements crucial for the detailed metrology of optical surfaces and wavefronts. Typically manufactured through lithographic processes resulting in binary diffractive optics, CGHs offer precision and design flexibility by modifying the test-leg wavefront of an interferometer. This enables the analysis of complex optical surfaces such as aspheres, freeforms, conics, and off-axis sections, which otherwise present challenges to traditional interferometric methods. CGHs use a fused silica substrate with printed or etched diffractive patterns, ensuring high customization and adaptability in standardized sizes. Available in 3-inch, 6-inch, and 9-inch formats, these CGHs can have AR-coated back surfaces and kinematically mount to alignment stages. A comprehensive metrology system may integrate these CGHs for enhanced testing functionalities, including wavefront, surface-to-surface alignment, and field angle analyses.

Computer-Generated Holograms (CGHs) are precision-engineered optical elements that play a crucial role in advancing metrology for optical surfaces that are complex in shape. By modifying the test-leg wavefront of an interferometer, CGHs facilitate the precise measurement of a wide variety of optical surface configurations, including aspheres, freeforms, conics, and off-axis sections, overcoming the limitations found in traditional interferometry. Crafted predominantly from binary diffractive optics, these holograms are produced using lithographic techniques that enhance their precision. Available in sizes of 3-inch, 6-inch, and 9-inch, CGHs from Arizona Optical Metrology offer customizable solutions, integrating seamlessly with alignment stages and featuring anti-reflective coated back surfaces. They consist of silca substrates where the diffractive pattern is meticulously printed or etched, providing a comprehensive metrological solution when combined with a Metrology System, ensuring accurate surface and wavefront analysis.

Cylinder computer-generated holograms (CGH) by AOM are sophisticated diffractive optical elements innovatively crafted to transform a collimated interferometer wavefront into a precisely focused cylindrical wavefront. These elements allow the accurate confocal null testing of both concave and convex cylindrical optics, with flexible testing configurations achievable by positioning optics within converging or diverging wavefronts. AOM provides a diverse array of cylinder CGHs, each uniquely engineered to accommodate various interferometer outputs, with sizes ranging from 2 to 6 inches. Their application extends over a breadth of cylindrical optics metrology tasks, particularly those necessitating compatibility with commercial interferometers. Standard models are available with mechanical cell mounts that seamlessly interface with AOM’s fine alignment stages. Whether seeking a stock solution or a custom-designed hologram for specific wavelengths beyond the standard 633 nm, AOM offers a range of purchasing and customization options through platforms such as the Edmund Optics catalog.