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

25.4mm NIR II λ/4 Fresnel Rhomb Retarder

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Stock #36-143 3-4 days
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€328,00
Qty 1-5
€328,00
Qty 6+
€301,00
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Specifications

General

Type:
Fresnel Retarder

Physical & Mechanical Properties

Clear Aperture CA (mm):
18.81 x 18.81
Dimensional Tolerance (mm):
±0.10
Bevel:
Protective bevel as needed
Width (mm):
25.40

Optical Properties

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
Retardance:
λ/4
Surface Quality:
20-10
Wavelength Range (nm):
750 - 1550
Entrance and Exit Surface (mm):
25.4

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 235:

Product Details

  • 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.

Technical Information

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.