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Concave Broadband Metallic Mirrors

Concave Broadband Metallic Mirrors
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O p t i c s 523 Email: sales@newport.com • Web: newport.com TECHNICAL REFERENCE AND FUNDAMENTAL APPLICATIONS LENS SELECTION GUIDE SPHERICAL LENSES CYLINDRICAL AND SPECIALTY LENSES OPTICS SETS OPTICAL SYSTEMS MIRRORS PRISMS Concave Broadband Metallic Mirrors Concave mirrors are used for focusing, collecting, and imaging with no chromatic aberration. They can be used to manipulate laser beams or broadband sources. These mirrors are available in three sizes, 12.7, 25.4, and 50.8 mm diameter, with radii from 25–2000 mm. • No chromatic aberration • UV, visible, and IR metallic coatings • Radii from 25–2000 mm • 12.7, 25.4, and 50.8 mm diameters Specifications Material Pyrex® Spherical Tolerance (S1) ±1% Surface Accuracy (S1) ë/4 at 632.8 nm over the clear aperture Plano Surface (S2) Fine ground Clear Aperture (S1) central 80% of diameter Surface Quality (S1) 40-20 scratch-dig Diameter Tolerance +0/-0.13 mm Edge Thickness (Te) Tolerance ±0.25 mm Center Thickness (Tc) Tolerance Nominal value Wedge 0.03 mm edge thickness variation Chamfers 0.25–0.76 mm face width 45° ±15° Durability MIL-M-13508C Cleaning Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended (see page 622) Damage Threshold AL.2, 100 W/cm2 CW, 0.3 J/cm2 with 10 nsec pulses at 308 nm, typical ER.1, 100 W/cm2 CW, 0.3 J/cm2 with 10 nsec pulses at 532 nm, typical ER.2, 1000 W/cm2 CW, 1 J/cm2 with 10 nsec pulses at 1064 nm, typical Ordering Information To order, append the coating code AL.2, ER.1, or ER.2 to the substrate number. For example, 10DC100+ER.1 = 10DC100ER.1 Coatings Coating Type Wavelength Range Reflectivity Coating Code UV Enhanced Aluminum 250–600 nm Ravg >90 % AL.2 Enhanced Aluminum 450–700 nm Ravg >93%, Rmin >90 % ER.1 Protected Silver 480–1100 nm 1.1–20 ìm Ravg >96%, Rmin >93% Ravg >98.5%, Rmin >97 % ER.2 Substrate Number Diameter (mm) R (mm) EFL (mm) f/# Te (mm) Tc (mm) 05DC25 12.7 25 12.5 1.0 3.18 2.36 05DC50 12.7 50 25 2.0 3.18 2.78 05DC100 12.7 100 50 3.9 3.18 2.98 05DC200 12.7 200 100 7.9 3.18 3.08 05DC500 12.7 500 250 19.7 3.18 3.14 10DC50 25.4 50 25 1.0 6.35 4.71 10DC100 25.4 100 50 2.0 6.35 5.54 10DC200 25.4 200 100 3.9 6.35 5.95 10DC500 25.4 500 250 9.8 6.35 6.19 10DC1000 25.4 1000 500 19.7 6.35 6.27 20DC100 50.8 100 50 1.0 9.53 6.25 20DC200 50.8 200 100 2.0 9.53 7.91 20DC500 50.8 500 250 4.9 9.53 8.88 20DC1000 50.8 1000 500 9.8 9.53 9.21 20DC2000 50.8 2000 1000 19.7 9.53 9.37 Typical 100 90 80 70 60 50 250 300 350 400 450 500550600 Wavelength (nm) Reflec tance (% ) AL.2 UV Enhanced Aluminum ER.1 Enhanced Aluminum 2 4 6 810 100 90 80 70 60 0.4 0.6 0.8 0° Reflectance (%) Wavelength (ìm) Typical 2 4 6 810 100 90 80 70 60 0.8 0° 0.4 0.6 ER.2 Protected Silver Reflectance (%) Wavelength (ìm) Typical DIA Te EFL RADIUS CLEAR APERTURE Tc Other Sizes For other diameters or different radii our lenses can be coated with a reflective coating. Please see the spherical lens section for a complete selection. Contact Newport for a quotation.

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Concave Broadband Metallic Mirrors 1Pages

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Concave Broadband Metallic Mirrors
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