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Broadband Metallic Mirrors

Broadband Metallic Mirrors
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518 O p t i c s Phone: 1-800-222-6440 • Fax: 1-949-253-1680 TECHNICAL REFERENCE AND FUNDAMENTAL APPLICATIONS CYLINDRICAL AND SPHERICAL LENSES LENS SELECTION GUIDE SPECIALTY LENSES PRISMS MIRRORS OPTICAL SYSTEMS OPTICS SETS Broadband Metallic Mirrors Metallic mirrors are excellent general purpose, broadband reflectors. We offer four standard coatings, covering the UV, visible, and IR. These mirrors are available in round sizes from 12.7–203.2 mm (0.5–8.0 in.) with Pyrex® or Zerodur® substrates and in two elliptical sizes with Pyrex® substrates. Specifications Diameter Tolerance [in. (mm)] 0.5 (12.7)–4.0 (101.6) +0/-0.13 mm 6.0 (152.4) & 8.0 (203.2) +0/-0.25 mm Elliptical Minor Axis +0/-0.18 mm Elliptical Major Axis +0/-0.25 mm Thickness Tolerance [in. (mm)] 0.5 (12.7)–4.0 (101.6) ±0.25 mm 6.0 (152.4) & 8.0 (203.2) ±0.38 mm Elliptical ±0.25 mm Clear Aperture central 80% of diameter Chamfers [in. (mm)] 0.5 (12.7) & 1.0 (25.4) 0.25–0.76 mm face width x 45° ±15° 1.181 (30.0)–4.0 (101.6) 0.38–1.14 mm face width x 45° ±15° 6.0 (152.4) & 8.0 (203.2) 0.51–1.52 mm face width x 45° ±15° Elliptical 0.38–1.14 mm face width x 45° ±15° S2 Surface Ground 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 ER.4, 200 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, ER.2 or ER.4 to the substrate number. For example, 10D20+ER.2 = 10D20ER.2 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 Protected Gold* 650–1700 nm 1.7–20 ìm Ravg >96%, Rmin >92% Ravg >98%, Rmin >96 % ER.4 * Protected Gold coating uniformity will be on a best effort basis for mirror diameters of 6" or greater. Ultrafast Mirrors Newport manufactures dielectric mirrors specifically designed to minimize pulse dispersion in ultrafast laser applications (see page 427). Our ER.2 or ER.4, protected silver or gold coatings, are excellent choices for lower-cost ultrafast applications because of its short skin depth (reducing dispersion) and its relatively high damage threshold. Please see page 520 for information on our economical VALUMAX® Broadband Metallic Mirrors. SUPREMA® Series Optical Mounts see page 637 • New Protected Gold Coating • Excellent general purpose broadband reflectors • Broader bandwidth and more economical than dielectric coatings • Over 35 types of substrates and 4 coatings (UV, visible, and IR) to choose from 2 4 6 810 100 90 80 70 60 0.4 0.6 0.8 ER.4 Protected Gold Reflectance (%) Wavelength (ìm) Typical 0° VizixTM series Mirror Mounts see page 645 NEW

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Broadband Metallic Mirrors 2Pages

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Broadband Metallic Mirrors
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