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All Products / Optics / Optical Mirrors / Flat Mirrors / Precision Polished Dielectric Coatings / Broadband Dielectric λ/4 Mirrors
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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

50mm Dia. 400 - 750nm Broadband λ/4 Mirror

Broadband Dielectric λ/4 Mirrors

Broadband Dielectric λ/4 Mirrors

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Stock #70-676 New 3-4 days
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€165,00
Qty 1-5
€165,00
Qty 6+
€132,00
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Coating:
Dielectric Mirror (400-750nm)
Coating Specification:
Ravg >98% @ 400 - 750nm (0-45°, All Polarizations)
Ravg >99% @ 400 - 750nm (0-45°, S-Polarizations)
Wavelength Range (nm):
400 - 750
Diameter (mm):
50.00 +0.00/-0.25
Surface Flatness (P-V):
λ/4 (typical)
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
BOROFLOAT®
Back Surface:
Commerical Polish
Surface Quality:
60-40
Coating Type:
Dielectric
Angle of Incidence (°):
0-45
Clear Aperture (%):
90
Clear Aperture CA (mm):
45.00
Edges:
Ground
Parallelism (arcmin):
5
Thickness (mm):
4.00 ±0.25
Type:
Flat Mirror
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
0.5 J/cm2 @ 532nm, 20ns, 20Hz

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
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Product Family Description

  • Enhanced Reflectivity and LDT over Metallic Coatings
  • Average Reflectivity >99% from 400 – 750nm
  • Designed for all Polarization States at 0 – 45° AOI
  • λ/10 Versions Available

TECHSPEC® Broadband Dielectric λ/4 Mirrors feature a high laser damage threshold of 0.5 J/cm2 @ 532nm, 20ns pulse, at 20Hz as well as a >99% reflection from 400 – 750nm across all polarization states. Constructed from highly durable BOROFLOAT® substrates, these mirrors feature outstanding thermal and high chemical durability making them ideal for high temperature and harsh environment applications. TECHSPEC® Broadband Dielectric λ/4 Mirrors are available in a variety of diameters from 12.5 - 50mm. A low-cost alternative to our precision polished TECHSPEC Broadband Dielectric λ/10 Mirrors, these mirrors are ideal for spectroscopy, microscopy, and general laboratory use such as beam steering or reflection applications utilizing multiple laser sources.

Note: Surface Flatness is measured pre-coating and deviations may appear after the coating has been applied. For applications where surface flatness is critical it is recommended it is recommended to use the TECHSPEC® Broadband Dielectric λ/10 Mirrors.