Request InfoMeller Optics Inc.Featuring flatness to <1/20 wave, ≤3 Å surface roughness, 10 to 5 scratch-dig finishes, and <2 arcsec parallelism, these windows are ideal for directed energy weapons. Manufactured to customer specifications in sizes from 0.25 to 9.00 in. OD and varying wall thicknesses, Meller Sapphire Windows can include stepped edges and elliptical edge shaping, with holes, slots, and wedges for mounting.See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 6/8/2022On-axis Dynamic InterferometerThe AccuFiz® D on-axis dynamic interferometer from 4D Technology Corp. features a 600-mm aperture beam expander, measuring remote cavities, optical thickness, and homogeneity, even in challenging...Promoted Content July 2023 IssueOEM Microscopy ComponentsHelping engineers develop the scientific instruments of tomorrow. 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