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λ/4 920-1240nm, Polymer Achromatic Retarder | Edmund Optics
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λ/4 920-1240nm, Polymer Achromatic Retarder

Stock #49-235
$995.00
Qty 1-5
$995.00
Qty 6
$900.00
Volume Pricing
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Retardance:
λ/4
Retardance Tolerance:
λ/100
Wavelength Range (nm):
920 - 1240
Clear Aperture CA (mm):
10.16
Diameter (mm):
25.40
Type:
Achromatic Waveplate
Transmitted Wavefront, P-V:
λ/4 @ 632.8nm
Damage Threshold, CW:
500 W/cm2
Damage Threshold, Pulsed:
Visible: 300 mJ/cm2 @ 10ns, 1064nm: 500 mJ/cm2 @ 10ns
Beam Deviation (arcmin):
1.00
Construction:
Birefringent Polymer Stack
Dimensional Tolerance (mm):
±0.127
Mount Thickness (mm):
6.35
Reflection (%):
0.5
Substrate:
Thickness (mm):
6.35
Thickness Tolerance (mm):
±0.508
Operating Temperature (°C):
-20 to +50

Regulatory Compliance

RoHS 2015:
Reach 205:

Product Family Description

  • Broad Spectral Range
  • λ/100 Retardance Accuracy
  • λ/4 and λ/2 Retardance
  • High Damage Threshold of 500 W/cm2

Precision Achromatic Waveplates (Retarders) consist of a polymer stack layered between two precision BK7 windows, and are available in standard λ/4 and λ/2 options for common visible and NIR wavelengths. These waveplates (retarders) will experience less than 1% retardance change over a ±10° angle of incidence. Each Precision Achromatic Waveplates (Retarders) is mounted in a metal ring with the fast axis clearly marked.

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