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Achromatic Zero-Order Quartz-MgF2 Wave Plates

Achromatic Zero-Order Quartz-MgF2 Wave Plates
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Achromatic Zero-Order Quartz-MgF2 Wave Plates - 1

O p t i c s 583 Email: sales@newport.com • Web: newport.com WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES Achromatic Zero-Order Quartz-MgF2 Wave Plates These achromatic zero-order wave plates consist of two different birefringent crystals — crystalline quartz and magnesium fluoride (MgF2) — in an air-spaced design. Compared to zero-order quartz wave plates, achromatic quartz-MgF2 wave plates offer better retardation accuracy over broadband wavelength ranges. Achromatic quartz-MgF2 wave plates are less expensive than achromatic polymer film wave plates and also feature higher damage thresholds. • Superior broadband performance • Retardation maintained from ±ë/50 to ±ë/100 over the bandwidth • Better retardation accuracy than zero-order quartz wave plates • Higher damage threshold than achromatic polymer film wave plates • Less expensive than achromatic polymer film wave plates Specifications Material Crystal Quartz and MgF2 Construction Air-spaced Retardation ë/4 or ë/2 Retardation Accuracy From ±ë/50 to ±ë/100 Wavefront Distortion ë/4 at 632.8 nm over the clear aperture Clear Aperture 12 mm Surface Quality 40-20 scratch-dig Transmitted Beam Deviation 1 arc min Acceptance Angle See Retardation Performance Graphs Thickness < 3.5 mm Housing Diameter 25.4 ±0.13 mm Housing Thickness 9.5 mm Max Temperature Range -20 °C to 50 °C Antireflection Coating Broadband, multilayer coating, Ravg <0.5% Cleaning Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended (see page 622) Damage Threshold 500 W/cm2 CW, 2 J/cm2 with 8 nsec pulses at 1064 nm, typical Housing Black anodized aluminum Ordering Information Wavelength (nm) Model Retardation Model Retardation ë/4 ë/2 400-700 10RP54-1 10RP52-1 700-1000 10RP54-2 10RP52-2 1000-1600 10RP54-3 10RP52-3 For a tutorial on wave plates, see page 437 RM25A Wave Plate/Polarizer Rotation Mount page 696

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Achromatic Zero-Order Quartz-MgF2 Wave Plates - 2

584 O p t i c s Phone: 1-800-222-6440 • Fax: 1-949-253-1680 WINDOWS BEAMSPLITTERS OPTICAL FILTERS POLARIZATION OPTICS DIFFRACTION GRATINGS HIGH-ENERGY OPTICS ULTRAFAST LASER OPTICS ACCESSORIES 400-700 nm ë/4 Wave Plate Intensity and Retardance 400 500 600 700 40 50 60 Intensity (%) Wavelength (nm) % intensity of wave plate placed at 45° azimuth between two open polarizers, 10RP54-1 400 500 600 700 0.2 0.25 0.3 Retardance (waves) Wavelength (nm) Normal Incidence 7° AOI Retardation vs. Wavelength, 10RP54-1 700-1000 nm ë/4 Wave Plate Intensity and Retardance 700 800 900 1000 48.5 50 51.5...

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