A company has made available zero- and multiple-order crystal quartz waveplates with a diameter of 10 mm designed to accommodate small optical systems. The waveplates are offered unmounted or in two different mounting configurations. The zero-order waveplates have a clear aperture of 8 mm. Each plate is antireflection-coated on both sides, with standard retardations of 0.5 and 0.25 wave. The waveplates are available mounted in anodized aluminum mounting rings 12.7–25.4 mm in diameter. Multiple-order plates are available in 49 standard wavelengths, ranging from 248 to 2020 nm. Zero-order waveplates are available in the same range, as well as ±20 nm of any of the 49 standard wavelengths.

Tower Optical Corp.
Boynton Beach, FL, 561/740-2525