Zinc Selenide (ZnSe) optics manufactured to OEM specifications for a wide range of optical components in spectrometers and other instru-ments are available from Laser Research Optics of Providence, Rhode Island. Laser Research ZnSe Optics can be custom manufactured in sizes from 0.5” to 5” O.D. with dimensional tolerances ranging from ±0.001” to ±0.005”, depending upon…