Absorptive Neutral Density Filters
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O p t i c s 567 Email: [email protected] • Web: newport.com WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES Absorptive Neutral Density Filters Our absorptive neutral density filters provide broadband attenuation for the visible to near-infrared region. These filters are precision polished for demanding research or OEM applications. Three sizes are available 12.7 and 25.4 mm round and 50.8 mm square. The 25.4 mm diameter and 50.8 mm square filters are permanently marked with the optical density and are available individually or in a set of nine. • New 12.7 mm diameter size • Broadband attenuation, visible to near IR • Absorptive neutral density glass • 25.4 mm dia and 50.8 mm square sizes are permanently marked with the optical density • For lower power applications Specifications Material Neutral density colored glass (BK 7 or equivalent for 0.05 OD) Clear Aperture central 80% of dimensions Surface Quality 60-40 scratch-dig Dimensions ±0.3 mm Thickness 1.57–4.19 mm (0.05 OD, 3.0 ±0.1 mm) Wedge 3 arc min Chamfers 0.25–0.76 mm face width x 45° ±15° Angle of Incidence 0° Optical Density Tolerance ±4% at 546.1 nm Cleaning Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended (see page 622) Damage Threshold 30 W/cm2 CW, typical Note: Due to the absorptive nature of the filter glass, use with high power lasers should be avoided. Ordering Information Optical Density at 546.1 nm Transmission at 546.1 nm Model Model Model Quantity in Filter Set for 25.4 mm and 12.7 mm Dia 25.4 mm Dia 50.8 x 50.8 mm 50.8 mm only 0.05 89.1 % FR-OD05 $39 FSR-OD05 $39 FSQ-OD05 $78 2 0.1 79.4 % FSR-OD10 $39 FSQ-OD10 $78 0.15 70.8 % FSR-OD15 $39 FSQ-OD15 $78 0.2 63.1 % FR-OD20 $39 FSR-OD20 $39 FSQ-OD20 $78 1 0.3 50.1 % FSR-OD30 $39 FSQ-OD30 $78 0.4 39.8 % FR-OD40 $39 FSR-OD40 $39 FSQ-OD40 $78 1 0.5 31.6 % FSR-OD50 $39 FSQ-OD50 $78 0.6 25.1 % FR-OD60 $39 FSR-OD60 $39 FSQ-OD60 $78 1 0.7 20.0 % FSR-OD70 $39 FSQ-OD70 $78 0.8 15.8 % FR-OD80 $39 FSR-OD80 $39 FSQ-OD80 $78 1 0.9 12.6 % FSR-OD90 $39 FSQ-OD90 $78 1.0 10.0 % FR-OD100 $39 FSR-OD100 $39 FSQ-OD100 $78 1 1.5 3.2 % FSR-OD150 $39 FSQ-OD150 $78 2.0 1.0 % FR-OD200 $39 FSR-OD200 $39 FSQ-OD200 $78 1 3.0 0.1 % $39 FSR-OD300 $39 FSQ-OD300 $78 1 4.0 0.01 % $39 FSR-OD400 $39 FSQ-OD400 $78 Configurable Set of Absorptive Neutral Density Filters see page 489 Set of Absorptive Neutral Density Filters $399 FS-3R $399 FS-3 $725 Please see page 445 for the optical density equation. ø 12.7 3.0 ø 10.1 CLEAR APERTURE ø 25.4 ø 20.3 CLEAR APERTURE THICKNESS THICKNESS 45.5 MIN ACTIVE AREA 50.8 For attenuation of high-energy lasers, we recommend our Model 935 Variable Attenuator. Availability – Guaranteed on select items @ newport.com NEW

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568 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 O p t i c s ACCESSORIES ULTRAFAST LASER OPTICS HIGH-ENERGY OPTICS DIFFRACTION GRATINGS POLARIZATION OPTICS OPTICAL FILTERS BEAMSPLITTERS WINDOWS Filter Set VersaStar™ Modular Filter Wheel see page 689 FH-2S Filter Holder see page 688 Infrared Neutral Density Filters Optimized for 2 to 5 ìm, these filters attenuate IR radiation from 2 to 14 ìm. These one-inch diameter filters are made from germanium substrates coated with a spectrally neutral vacuum deposited metal alloy reflective coating. • Attenuate IR radiation from 2 to 14 ìm (optimized for...

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