Material | UVFS |
S1 Surface Irregularity* | λ/10@633 nm |
S1 Surface Quality* | 40-20 scratch & dig (MIL-PRF-13830B) |
S2 Surface Quality | Commercial polish |
Clear aperture | >90% of the diameter |
Diameter Tolerance | 0.00/-0.13 mm |
Thickness Tolerance | ±0.2 mm |
Laser Induced Damage Threshold |
>0.25 J/cm2 at 800 nm, 100 Hz, 100 fsec pulses |
Group Delay Dispersion | <|5 fs2| |
S1* Surface for Spherical mirrors is curved
EKSMA Optics Femtoline Enhanced Silver Mirrors
143.45 kB |
Enhanced silver mirrors are designed for applications with femtosecond lasers. These mirrors feature high reflectivity R>98.5% in the wavelength range from 600 nm to 1100 nm and R>99% @ 700-900 nm. Mirrors are relatively insensitive to angle of incidence and can be used in applications with AOI ranging from 0° to 45°. Laser induced damage threshold (LIDT) was measured for femtosecond pulses - 0.25 J/cm2 at 800nm, 100 Hz, 100 fs.
Mirrors feature low group delay dispersion (GDD) <|5 fs2| in broadband region.
We offer round, square, flat or spherical standard mirrors with radii ranging from -50 mm to -10000 mm or from +50 mm to +5000 mm. Standard substrates are from N-BK7 glass or UV fused silica with sizes ranging from ø12.7 mm (0.5") to ø101.6 mm (4").