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

25.4mm Dia. x 25.4mm EFL, Protected Aluminum 90° OAP Mirror with Alignment Through Holes


Stock #11-770 In Stock
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Off-Axis Parabolic Mirror
Diameter (mm):
25.40 +0.00/-0.10
Effective Focal Length EFL (mm):
Focal Length Tolerance (%):
Radius of Curvature (mm):
Protected Aluminum (400-2000nm)
Coating Type:
Coating Specification:
Ravg >85% @ 400 - 700nm
Ravg >90% @ 400 - 2000nm
Off-Set Angle (°):
Parent Focal Length PFL (mm):
Surface Figure, RMS:
Surface Roughness (Angstroms):
<50 RMS
Wavelength Range (nm):
400 - 2000
Surface Quality:
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Aluminum 6061-T6
Y Offset (mm):
Through Hole Orientation:
1 x Parallel to Focused Beam
1 x Parallel to Collimated Beam
Through Hole Diameter (mm):

Regulatory Compliance

Certificate of Conformance:

Product Family Description

  • Through Holes Parallel to Focused and Collimated Beams
  • Range of Metallic Coatings Available
  • <50Å RMS Surface Roughness

TECHSPEC® Off-Axis Parabolic (OAP) Mirrors with Alignment Through Holes are designed with two through holes, one that aligns with the focal point of beams focused off the parabolic surface and the second parallel to beams collimated by the surface. The hole placements allow for two beams to hit a target or sample simultaneously, which is a technique used to take pump-probe measurements. These OAPs feature aluminum substrates and are diamond turned with a surface roughness of <50Å RMS that minimizes scatter. TECHSPEC Off-Axis Parabolic Mirrors with Alignment Through Holes are available coated with protected gold, protected aluminum, or UV enhanced aluminum for integration into applications requiring high reflectance from the ultraviolet (UV) to the infrared (IR).

Note: Please contact us for custom options if your application requires a standard OAP Mirror with a through hole.