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All Products / Optics / Polarization Optics / Retarders (Waveplates) / Polymer Waveplates / Precision Zero Order Waveplates (Retarders)
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632.8nm, λ/2 Precision Zero Order Retarder

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Stock #49-211 3-5 days
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S$964.25
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S$964.25
Qty 6+
S$723.55
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Clear Aperture CA (mm):
10.16
Design Wavelength DWL (nm):
632.8
Diameter (mm):
25.40
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Polymer Film on N-BK7
Operating Temperature (°C):
-20 to +50
Reflection (%):
0.5
Retardance:
λ/2
Surface Quality:
40-20
Thickness Tolerance (mm):
±0.508
Type:
Polymer Waveplate
Dimensional Tolerance (mm):
±0.127
Construction:
Birefringent Polymer Stack
Transmitted Wavefront, RMS:
≤λ/5 @ 632.8nm
Retardance Tolerance:
λ/350
Beam Deviation (arcmin):
1.00
Mount Thickness (mm):
6.35
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
500 W/cm2
Retardance Order:
0

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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REACH 241:
Compliant
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Product Family Description

  • λ/4 and λ/2 Retardance
  • Excellent Angular Field of View
  • Birefringent Polymer Stack
  • High Damage Threshold of 500 W/cm2

Precision Zero Order Waveplates (Retarders) feature carefully aligned birefringent polymer sheets laminated between two precision N-BK7 windows, and are available in standard λ/4 and λ/2 options for common visible and NIR wavelengths. These polymer waveplates (retarders) offer excellent angular field of view because they are true zero-order retarders. Also, they will experience less than 1% retardance change over a ±10° angle of incidence. Each Precision Zero Order Waveplates (Retarders) is mounted in a metal ring with the fast axis clearly marked.