Request InfoRocky Mountain Instrument Co. (RMI)RMI-CO2, a division of Rocky Mountain Instrument Co., is a vertically integrated manufacturer of standard, OEM, and custom CO2 laser optics. Our in-house capabilities include CVD Zinc Selenide crystal growth, precision fabrication & polishing, and high-damage-threshold thin-film coatings for 10.6 & 9.3 µm. Call us to discuss your next project!See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra April 2023 IssueOptical Reference CavitiesThe XM-ORC series of optical reference cavities with crystalline mirrors from Menlo Systems GmbH and Thorlabs Inc. is stable at the zero-crossing of the thermal expansion coefficient. The...Photonics Showcase February 2023 IssueSight Glass ViewportsSight Glass Viewports made from sapphire exhibit Mohs 9 hardness, which is second only to diamond, making them ideal for applications in hostile environments, and they feature 0.001-in. 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We are your diffractive optics design solution partner.PHOTONICS BUYERS' GUIDE CATEGORIESHolographic OpticsCMOS LensesRefractometer CellsLaser-to-Fiber CouplersCOMPANIESPhotonics Buyers' GuideRocky Mountain Instrument Co. (RMI)As one of the original laser optics manufacturers in the US, Rocky Mountain Instrument Co. (RMI) has a longstanding history of developing and advancing high quality precision custom optics, specialty...Photonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOhara CorporationOHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. 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