Round mirror RBK series

BK7YAG laserhigh-reflectivity

Laser line mirrors are designed with reflectivity R > 99.5% for Nd YAG laser applications. The laser line mirrors are available with us at fundamental line 1064nm with their harmonics 532nm, 355nm, and 266nm for 45° angle of incidence. These mirrors have a higher damage threshold, high optical quality, and are suitable for beam-guiding applications. Any different wavelength laser lines and different angles of incidence are provided upon request. Substrate Material: N-BK7 & Fused Silica Dimension Tolerance: +0.0/-0.25mm Thickness Tolerance: ±0.25mm Surface Quality: 10/5 S-D Clear Aperture: >90% Reflectance: >99% at 45° Angle of Incidence: 0-45° Flatness: < λ/10 @ 632.8nm Group Delay Dispersion: < 30fs² (for s & p-polarized light) Coating: HR @ 350-400nm / 510-580nm / 950-1150nm Damage Threshold @ 20ns, 20Hz: 20 J/cm2 for 1064nm / 15 J/cm2 for 532nm / 10 J/cm2 for 355nm