12.5mm Dia. 400 – 750nm Broadband λ/4 Mirror

Product Details 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/cm 2 @ 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 . Specifications General Type: Flat Mirror Physical & Mechanical Properties Diameter (mm): 12.50 +0.00/-0.25 Thickness (mm): 2.00 ±0.25 Clear Aperture CA (mm): 11.25 Clear Aperture (%): 90 Parallelism (arcmin): 5 Edges: Ground Back Surface: Commercial Polish Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More BOROFLOAT Coating: Dielectric Mirror (400-750nm) Coating Type: Dielectric Coating Specification: R avg >98% @ 400 – 750nm (0-45°, All Polarizations) R avg >99% @ 400 – 750nm (0-45°, S-Polarizations) Wavelength Range (nm): 400 – 750 Surface Flatness (P-V): λ/4 (typical) Angle of Incidence (°): 0-45 Surface Quality: 60-40 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/cm 2 @ 532nm, 20ns, 20Hz Regulatory Compliance Certificate of Conformance: View ×