25mm Dia. 400 - 750nm Broadband λ/4 Mirror

• 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.