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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25.4mm NIR II λ/4 Fresnel Rhomb Retarder

TECHSPEC® Fresnel Rhomb Retarders
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Stock #36-143 3-5 days
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S$456.75
Qty 1-5
S$456.75
Qty 6+
S$419.05
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Clear Aperture CA (mm):
18.81 x 18.81
Coating:
NIR II (750-1550nm)
Design Wavelength DWL (nm):
1064
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Retardance:
λ/4
Surface Quality:
20-10
Type:
Fresnel Retarder
Dimensional Tolerance (mm):
±0.10
Bevel:
Protective bevel as needed
Wavelength Range (nm):
750 - 1550
Width (mm):
25.40
Entrance and Exit Surface (mm):
25.4

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 235:
Compliant
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Product Family Description

  • Broadband Performance with <2% Retardance Variation
  • 12.7mm and 25.4mm Options Available
  • λ/4 and λ/2 Retardance Options

TECHSPEC® Fresnel Rhomb Retarders are available with design wavelengths of 532nm and 1064nm. By utilizing a specific angle, Fresnel rhomb retarders impart a retardance with each internal reflection of the light, totaling λ/4. Each design is paired with either VIS 0° or NIR II coatings to provide efficient transmission across a broad range of wavelengths. These TECHSPEC Fresnel Rhomb Retarders deliver less than 2% retardance variation across the specified wavelength range and are optimized for use in diode and fiber applications.