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632.8nm, λ/2 Precision Zero Order Retarder

Stock #49-211
€595.00
Qty 1-5
€595.00
Qty 6
€510.00
Volume Pricing
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Retardance:
λ/2
Retardance Tolerance:
λ/350
Design Wavelength DWL (nm):
632.8
Clear Aperture CA (mm):
10.16
Diameter (mm):
25.40 ±0.127
Type:
Zero Order Waveplate
Surface Quality:
40-20
Damage Threshold, CW:
500 W/cm2
Damage Threshold, Pulsed:
600 mJ/cm2 @ 20ns, Visible
4 J/cm2 @ 20ns @ 1064nm
Wavefront Distortion (RMS):
≤λ/5 @ 632.8nm
Beam Deviation (arcmin):
1.00
Construction:
Birefringent Polymer Stack
Mount Thickness (mm):
6.35
Operating Temperature (°C):
-20 to +50
Reflection (%):
0.5
Substrate:
N-BK7
Thickness (mm):
6.35
Thickness Tolerance (mm):
±0.508

Regulatory Compliance

RoHS 2015:
REACH 201:

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.

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