 높은 손상 임계값

 높은 반사 성능 > 99.5% @ 0°

Specifications

Product Code

YL1 • YL2 • YL3 • YL4 • YL5

Substrate Material

λ<450 nm: UV-grade fused silica,

λ≥450 nm: N-BK7 glass

S1 Surface Figure

λ /10 at 633 nm before coating

S1 Surface Quality

10-5 scratch and dig

S2 Surface Quality

Commercial polish

Diameter Tolerance

Ø 0/–0.25 mm

Thickness Tolerance

t ±0.25 mm

Wedge

≤5 arc min

Chamfer

0.35 mm at 45° typical

Concentricity

≤0.05 mm

Radius Tolerance

±0.5%

Coating Technology

Electron beam multilayer dielectric

Adhesion and Durability

Per MIL-C-675C. Insoluble in lab solvents.

Clear Aperture

≥85% of central diameter

Reflectivity

Rp>99.0%, Rs > 99.7%,

Damage Threshold

Pulsed: 20 J/cm2, 20 nsec, 20 Hz @ 1064 nm

cw: 1 MW/cm2 @ 1064 nm