Windows & Filters UV & IR Optics Lithium Fluoride (LiF) Components 100 Lithium fluoride crystals are well-suited for manufacturing of optical elements (mirrors, windows, lenses) for UV, visible and IR applications. Percent transmission ● Optically isotropic, medium hard, hygroscopic, insoluble in water ● Wide transmission range from 150 nm to 6000 nm LiF is very useful for x-ray monochromators and for the study of fundamental properties and defects in crystals. External transmission of LiF window of 10 mm thickness. Physical properties Crystal type Housing accessories Optical Component Mount 830-0037 Material Spectral range Surface quality Clear aperture Diameter tolerance Thickness tolerance Surface flatness optical quality LiF crystal (∆n/cm < 0.5×10-5 ) Please contact us for other size, shape or precision requirements. Visit www.eksmaoptics.com for new products and prices Catalogue number Polarizing Optics LiF lenses, Brewster windows, prisms are available upon request.

OPTICAL COMPONENTS MAGNESIUM FLUORIDE (MgF2) COMPONENTS • Very hard and rugged • Resistant to mechanical and thermal shock • The only optical material combining a wide spectral transmission band with the birefringence Magnesium fluoride is a proven material for high energy lasers, and in particular for lasers operating in the UV range. Generally all optical elements are manufactured with the working surface perpendicular to the c-axis MgF2 lenses, windows, mirrors, prisms, are available upon reguest. External transmission of MgF2window of 10mm thickness PHYSICAL PROPERTIES Crystal type Refractive...

Calcium Fluoride (CaF2) Components Due to its composition CaF2 has a much longer useful life than most materials when used in a fluorine environment. External transmission of CaF2 window of 10 mm thickness. Windows & Filters Percent transmission Two grades of materials are available: one for UV and the other for IR applications. Low solubility and a wide transmission range makes it useful for many applications, including: – mirror substrate for UV laser systems; – substrate for manufacturing windows, lenses for UV, IR applications. ● Useful transmission over the spectral range from 0.2 to 8.0...

Optical Components Barium Fluoride (BaF2) Components 100 Barium fluoride is used for optical windows, prisms and lenses transmitting from ultraviolet into infrared, it can be used as an infrared laser window or lens. BaF2 is recommended for use as a vacuum ultraviolet window where high radiation resistance is required. BaF2 is less soluble than LiF, but relatively more soluble than MgF2 and CaF2. Percent transmission ● Useful transmission range covers 0.265–10 µm ● Most resistant to high energy radiation among fluorides listed in this catalogue External transmission of BaF2 window of 10 mm thickness....

Physical properties cubic Refractive index Windows & Filters Characteristics of the different Cross Polarized Wave (XPW) crystals at 2.1 µm [2] Surface quality Clear aperture Diameter tolerance Thickness tolerance Surface flatness [1] L. Canova, S. Kourtev, N. Minkovski, A. Jullien, R. Lopez-Martens, O. albert, and S.M. Saltiel, Appl. Phys. Lett. 92, 231102 (2008) Crystal type Cross-Polarized Wave (XPW) generation is a nonlinear third order process during which fundamental and generated waves have the same frequency; however, generated wave is perpendicularly polarized to pump wave polarization....

Optical Components Single crystal sapphire combines excellent optical, phy­ ical s and chemical properties. Chemically inert and al­ ost insoluble, m sapphire in many ways is a superior ma­erial for windows. It is t transparent from 150 nm up to 6 µm in the middle infrared. Sapphire exhibits anisotropy in many optical and phy­ ical propers ties. Difference in the index of refraction in orthogonal directions is 0.008. The high index of sapphire makes magnesium fluoride almost an ideal single layer anti-reflection coating. Percent transmission ● The hardest of the oxide crystals ● Excellent transparency...

Zinc Selenide (ZnSe) Components Coatings Zinc selenide is the most popular material for infrared applications. Due to a very wide transmission range covering 0.6–22 µm chemical vapor deposition grown ZnSe as a high optical quality material is used to ma­ u­ac­ure optical components (windows, n f t mirrors, lenses) for high power IR lasers. Percent transmission Because of a high refractive index, single and double layer antireflection coatings can be unusually effective. External transmission of ZnSe window of 10 mm thickness. Windows & Filters ● Low absorption in the red end of the visible spectrum...

Optical Components Diameter, mm Catalogue number Catalogue number Please contact us for other size, shape, precision or coating requirements. ZnSe Meniscus Lenses Specifications ZnSe Catalogue number Surface quality Focal length tolerance Diameter tolerance Thickness tolerance Clear Aperture both surfaces AR coated @ 10.6 µm, R0.5% per surface Housing accessories Variable Lens Holder 830-0040 Please contact us for other size, shape, precision or coatings requirements. Silicon (Si) Components Coated silicon substrates are most common used as mirrors for CO2 lasers. Its advantages are good durability,...

The high refractive index ensures an exceptional single wavelength performance for a “best form” singlet constructed from germanium. External transmission for Ge window of 10 mm thickness. Windows & Filters Percent transmission Ge based optical components are widely used for IR applications. Ge is well suited for manufacturing windows and lenses for IR applications in lasers and optical systems. Ge components are used with AR coatings because of high surface reflectivity of substrate. ● Wide IR transmission range covering 1.8–16 µm ● Opaque in the visible range Physical properties Crystal type...