Sapphire Crystals

Milford, NH
Custom Manufacturer
Sapphire flat and curved sheets, tubes, pins, rods and complex components used where transparency, scratch resistance, chemical inertia, high thermal conductivity or mechanical resistances are required. X-ray analyzers for XRF and spectral analysis. Gallium garnet substrates used as optical isolators or as substrates to grow semiconductor layers.

Fuzhou, China (1,000 employees)
Stock Manufacturer • Custom Manufacturer
After 30 years of rapid growth, CASTECH is a global leader in nonlinear optical crystals, laser crystals, precision optics, and laser components for laser applications, optical communications, biomedical VR/AR, and lidar. With ISO 9001 and IAFT 16949 quality management system, we consistently enable our customers from prototype to mass production stage.

Providence, RI (40 employees)
Stock Manufacturer • Custom Manufacturer
Manufacturer of coated and uncoated lenses, optical windows, prisms, mirrors and electronic substrates for lasers and analytical instruments. Materials include sapphire, quartz, BK 7 and other common laser glasses, germanium, silicon, zinc selenide, zinc sulfide, fluorides and ruby. Supplier of alumina powder and pitch.

Qinhuangdao, China (200 employees)
Custom Manufacturer
Supplies CaF2, BaF2, MgF2, and LiF crystal material and optics; Si, Ge, ZnSe, ZnS material, and optics. Coated and uncoated customized optics including windows, lenses, prisms, wedges, mirrors, filters, cylinders, and domes. ISO 9001 certified. All the material meets RoHS and Reach.

Shirley, MA (30 employees)
Custom Manufacturer
ISO 9001:2015 manufacturer of substrates, windows, wafers, flat optics, precision shims and spacers, 0.127-mm sq to 450-mm diameter. Precision lapping, polishing, dicing, 5 axis CNC machining, small diameter core drilling, hole drilling. Ultrathin 10 to 20 microns, ultraflat, tight tolerances. Fused silica, glass, sapphire, ceramics, metals, many from inventory.