Harrick Scientific offers a variety of polished optics for infrared and UV-Vis spectroscopy, including windows, ATR plates, prisms and hemispheres. These optics are available in a variety of materials including BaF₂, CaF₂, Ge, KBr, NaCl, Si, SiO₂, ZnSe and ZnS. Our stock sizes are listed herein. All optics are sold individually. For any sizes or materials not listed, we welcome the opportunity to quote.