30 -3 85 130 205 410 995 20 Price, EUR 0.6–1.0×10 n = 2.417–2.385 n = 2.403 10 -6 2.0 3.0 3.0 5.0 6.4 µm 5 Thickness, mm 0.6 – 21 cubic @ 10.6 µm 8.56×10 5.27 1525 @ 8–13 µm @ 10.6 µm velength, 3 Wa

-1 12.7 25.4 38.1 50.8 76.2 ZnSe 40-20 scratch & dig (MIL-PRF-13830B) 90% of the diameter +0.0 -0.13 mm ± 0.1 mm λ/40 per inch @ 10.6 µm over clear aperture 3 arcmin AR coated @ 10.6 µm, both surfaces R0.5% per surface ZnSe 40-20 scratch & dig (MIL-PRF-13830B) ±2% +0.0 -0.13 mm ±0.1 mm AR coated @ 10.6 µm, both surfaces R0.5% per surface iameter, mm Diameter, 12 -1 .7 3 AR/[email protected] µm, AOI=0° 0.50 560-6122 560-6253 560-6383 560-6505 560-6766 External transmission of ZnSe window of 10 mm thickness. External transmission of ZnSe nents

60 40 20 80

n transmissio 100 Percent Catalogue number Transmission range, µm range, Transmission Bulk absorption coefficient, cm Coefficient of linear thermal expansion, °C Material Surface quality Focal length tolerance Diameter tolerance Thickness tolerance Coating Material Surface quality Clear aperture Diameter tolerance Thickness tolerance Surface flatness Parallelism Coating Crystal type Density, g/cm Density, Melting point, °C Refractive index Please contact us for other size, shape, precision or coating requirements. Specifications SPECIFICATIONS Coated roperties p Physical mpo - Co 55 57 69 73 135 270 340 Optical Optical Price, EUR 2.0 3.0 2.0 3.0 3.0 3.0 5.0 Thickness, mm ture optical components (windows, fac­ 12.7 12.7 25.4 25.4 38.1 50.8 50.8 nu­ and beamselectors are and beamselectors are available upon request. ZnSe Brewster windows, ZnSe Brewster windows, iameter, mm Diameter, mirrors, prisms, beamsplitters mirrors, prisms, beamsplitters EKSMA OPTICS • Tel.: +370 5 272 99 00 • Fax: +370 5 272 92 99 • [email protected] • www.eksmaoptics.com Tel.: OPTICS • EKSMA antireflection coatings can be unusually effective. antireflection coatings can 560-6120 560-6121 560-6250 560-6251 560-6381 560-6501 560-6503 Because of a high refractive index, single and double layer index, single and double layer Because of a high refractive Not hygroscopic in the laboratory environment Quite stable Low absorption in the red end of the visible in the red end of Low absorption spectrum ● ● ● Catalogue number ) Components de (ZnSe Zinc Seleni ZnSe Plano-Convex Lenses Uncoated ZnSe Windows tions. 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 Zinc selenide is the most popular material for infrared applica power IR lasers. mirrors, lenses) for high

Windows & Filters Mirrors Lenses Prisms Polarizing Optics UV & IR Optics Coatings 1.71 ZnSe MeniscusLenses Silicon (Si)Windows Silicon (Si)Mirrors Specifations CO for mirrors as used common most are substrates silicon Coated externally asbeambendersindeliverysystems. The total reflectors are used as rear reflectors and fold mirrors and and relativelylowcost. Silicon (i)Components Coating Clear Aperture Thickness tolerance Diameter tolerance Focal lengthtolerance Surface quality Material Catalogue number 2 lasers. Its advantages are good durability, thermal stability thermal durability, good are advantages Its lasers. 561-6256 561-6255 561-6254 561-6253 561-6252 561-6251 561-6192 561-6122 See page8.49 830-0040 Lens Holder Variable Housing accessories Diameter, mm SPECIFATIONS SPECIFATIONS Parallelism Coating for unpolarisedradiation Reflectivity Coating R0.5% persurface both surfaces AR [email protected]µm, 90% ofthediameter ±0.1 mm +0.0 -0.13mm ±2% 40-20 scratch&dig(MIL-PRF-13830B) ZnSe 25.4 25.4 25.4 25.4 25.4 25.4 19.1 12.7 Focal length,mm 63.5 38.1 25.4 150 127 100 75 50 Visit www.eksmaoptics.com fornew products andprices 3 arcmin uncoated > 99% protected gold Price, EUR 190 190 195 195 195 195 185 185 UV & IR O Please contactusforothersize,shape,precisionorcoatingsrequirements. Please contactusforothersize,shape,precisionorcoatingrequirements. SPECIFATIONS ptics Thickness tolerance Diameter tolerance Clear aperture Surface flatness Surface quality Operation wavelength Density, g/cm Material Catalogue number Catalogue number Catalogue number Catalogue number 565-6765 565-6502 565-6388 565-6385 565-6382 565-6258 565-6257 565-6256 565-6255 565-6253 565-6252 565-6251 565-6122 561-6765 561-6502 561-6388 561-6385 561-6382 561-6258 561-6257 575-6500U 575-6250U 575-6500 575-6380 575-6250 3 Diameter, mm Diameter, mm Diameter, mm Diameter, mm 76.2 50.8 38.1 38.1 38.1 25.4 25.4 25.4 25.4 25.4 25.4 25.4 12.7 76.2 50.8 38.1 38.1 38.1 25.4 25.4 50.8 25.4 50.8 38.1 25.4 ±0.25 mm +0.0-0.2mm >80% ofdiameter λ/4 @633nm 40-20 scratch&dig(MIL-PRF-13830B) 10.6 µm 2.33 Si Focal length,mm Focal length,mm Thickness, mm Thickness, mm 190.5 63.5 63.5 38.1 25.4 38.1 63.5 254 127 254 127 127 100 254 127 127 254 200 75 50 3 3 5 4 3 Price, EUR Price, EUR Price, EUR Price, EUR 1450 1390 612 345 345 345 217 217 217 217 217 224 224 215 580 308 315 190 190 308 160 159 95 94 59 1.72 UV & IR Optics Polarizing Optics Prisms Lenses Mirrors Windows & Filters Coatings