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    Retardance
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    Waveplates and Retarders

    Waveplates, also known as Retarders, are used to transmit light while modifying its polarization state without attenuating, deviating, or displacing the beam. Common Waveplate applications include rotating linear polarization, or transforming linear polarization into circular polarization. Retarders are designed to operate with light that have existing polarization states. Using a Waveplate with unpolarized light will not have any impact on its polarization state and the light will remain unpolarized. Waveplates consist of birefringent, crystalline or polymer materials that create a phase shift between the polarization components.

    Edmund Optics offers a variety of Waveplates with crystalline or polymer materials, including multiple order, zero order, or achromatic waveplates. Polymer Waveplates offer superior performance over a wider range of incidence angles. Multiple order Waveplates are ideal for use with monochromatic light that deviates less than 1% of the Waveplate’s design wavelength. Zero order Retarders offer high performance over wider wavelength or temperature ranges. Achromatic Waveplates offer the most constant performance over the widest wavelength or temperature ranges.

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    Fresnel Rhomb Retarders
    • Broadband Performance with <2% Retardance Variation
    • 12.7mm and 25.4mm Options Available
    • λ/4 and λ/2 Retardance Options
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    High Energy Quartz Waveplates
    • Damage Threshold up to >20 J/cm2 @ 1064nm
    • λ/4 and λ/2 Retardance
    • Black Anodized Aluminum Mount
    • UV to NIR Design Wavelengths Available

    Achromatic Waveplates (Retarders)
    • Multiple Wavelength Ranges Available
    • Flat Response Over Each Broad Spectral Range
    • λ/4 and λ/2 Retardance
    • Mounted in Black Anodized Aluminium Housing

    Crystalline Quartz Polarization Rotators
    • Rotates Polarization by a Fixed Angle Regardless of Incident Polarization Angle
    • Convenient Replacement of Half-Waveplate for Narrow Waveband Lasers
    • 1064nm, 532nm, and 355nm Anti-Reflection Coatings Available in Both 45° and 90° Rotation Angles
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    Liquid Crystal Variable Waveplates (Retarders)
    • Electrically Controlled Retardance up to λ/2
    • Manual or Computer Interface Control
    • Easy Mounting with 8-32 Tapped Hole

    Meadowlark Optics Polarimeter
    • Absolute Degree of Polarization Accuracy ≤1%
    • Broad Wavelength Range from 450 to 1100nm
    • No Moving Parts for Vibration Free Operation

    Mid-Wave Infrared (MWIR) and Long-Wave Infrared (LWIR) Waveplates
    • Ideal for Applications in the 3 – 9μm Range
    • λ/4 and λ/2 Retardance
    • Mounted for Easy Alignment and System Integration

    Polymer Retarder Film
    • Highly Durable Polymer Sheets
    • λ/4 Achromatic Retarder with Greater than 90% Transmission from 450-700nm
    • λ/4, λ/2, and 1λ Retarder Films Available

    Polymer Waveplates (Retarders)
    • True Zero Order Waveplate Performance
    • λ/4 and λ/2 Retardance
    • Available with Multiple Wavelengths or Achromatic Designs

    Precision Achromatic Waveplates (Retarders)
    • Broad Spectral Range
    • λ/100 Retardance Accuracy
    • λ/4 and λ/2 Retardance
    • High Damage Threshold of 500 W/cm2

    Precision Zero Order Waveplates (Retarders)
    • λ/4 and λ/2 Retardance
    • Excellent Angular Field of View
    • Birefringent Polymer Stack
    • High Damage Threshold of 500 W/cm2

    Quartz Waveplates (Retarders)
    • Zero Order and Multiple Order Waveplates
    • λ/4 and λ/2 Retardance
    • Mounted in Black Anodized Aluminum Frame
    • Zero Order Polymer Waveplates Also Available

    Radial Polarization Converters
    • Converts Linear Polarization to Radial or Azimuthal
    • Can be Used to Create an Optical Vortex or Doughnut Beam
    • High Damage Thresholds of 20 J/cm@ 1064nm, 3.5ns

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