Germanium (Ge) crystal is widely used for infrared
applications due to its high index of refraction.
Lithium Fluoride is a cubic crystal that
transmits very well into the extreme UV region at the hydrogen Lyman-alpha line (121 nm) and well into the IR spectrum.
Zinc Sulfide (ZnS) Broadtran®
Our clear multispectral ZnS transmits from the visible spectrum (360nm) to the far infrared (14µm). We produce large grain crystal material that reduces scattering and offers low absorption making it an ideal crystal for FLIR and other IR applications.
Silicon Windows (Si)
Fairfield Crystal’s silicon windows (Si) are manufactured from optical grade silicon and are designed to be used in precision optical systems for the 1.2 - 7µm spectral region. Due to its low cost and low density silicon is ideal for weight sensitive applications.
Calcium Fluoride (CaF2) Single Crystal
193nm Grade to IR
Our standard sizes range from 5.0mm to 190mm diameter however, larger sizes are available upon request. We offer CaF2 blanks and components in a variety of crystal orientations, <111>, <100>, random or other orientations upon request.
Magnesium Fluoride (MgF2) Crystal
Deep UV to IR
MgF2 transmits well into the VUV region at the Lyman-alpha line (121nm) and beyond. Our standard sizes range from 5.0mm to 120mm diameter, however larger sizes and orientations are available upon request.
Barium Fluoride (BaF2) Crystals
UV to IR
Barium Fluoride is transparent from the ultraviolet (UV) to the infrared (IR) from 0.200 to 14.0 µm, and is used to make optical components, such as windows for infrared spectroscopy. Our standard sizes range from 5.0mm to 100mm diameter, however larger sizes and cuts are available upon request.
High-Purity Deposition Materials
Fairfield Crystal Technology's evaporation chemicals for optical coating are produced to a consistent high quality and purity. Our deposition materials are 99.999% pure. They evaporate cleanly and completely, without out-gassing or spitting and leave a hard, uniform coating on the substrate.