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25.4mm Dia, 1200-1650nm, λ/2 Achromatic Waveplate

Achromatic Waveplates (Retarders)

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Stock #46-563 In Stock
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C$1,218.00
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C$1,218.00
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C$1,057.00
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Clear Aperture CA (mm):
11.5
Coating:
Ravg <0.5% @ 1200 - 1650nm
Diameter (mm):
25.40
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Crystal Quartz and MgF2
Retardance:
λ/2
Surface Quality:
20-10
Thickness (mm):
9.00 ±0.1
Type:
Achromatic Waveplate
Parallelism (arcmin):
<1
Dimensional Tolerance (mm):
+0/-0.25
Construction:
Crystalline
Transmitted Wavefront, P-V:
λ/4 @ 633nm
Housing Tolerance (mm):
+0/-0.25
Retardance Tolerance:
≤ λ/100
Temperature Coefficient (λ/°C):
<1/500
Coating Specification:
Ravg <0.5% @ 1200 - 1650nm
Wavelength Range (nm):
1200 - 1650
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
500 kW/cm2
Configuration:
Air Spaced

Regulatory Compliance

RoHS 2015:
Reach 209:
Certificate of Conformance:

Product Family Description

  • Multiple Wavelength Ranges Available
  • Flat Response Over Each Broad Spectral Range
  • λ/4 and λ/2 Retardance
  • Mounted in Black Anodized Aluminum Housing

Achromatic Waveplates (Retarders) provide a constant phase shift independent of the wavelength of light that is used. This wavelength independence is achieved by using two different birefringent crystalline materials. The relative shifts in retardation over the wavelength range are balanced between the two materials used. Achromatic Waveplates (Retarders), with their flat response, are ideal for use with tunable lasers, multiple laser line systems, and other broad-spectrum sources. 

Designed to be used at an angle of incidence of 0°, changes of ±3° will yield less than 1% change in retardance. The 23mm clear aperture waveplates will feature a cemented construction. All Achromatic Waveplates (Retarders) are mounted in an anodized aluminum housing with the fast axis clearly indicated.