Antireflection Coating

Wavelength user specified

Center Thickness

tc±0.25 mm

Chamfer

0.35 mm at 45° typical

Clear Aperture (CA)

≥ 85% of central diameter

Concentricity

≤ 0.05 mm

Damage Threshold

4 J/cm2, 20 nsec, 20 Hz @ 1064 nm

Diameter

φ+0/-0.25 mm

Optical Material

N-SF11 glass

Paraxial Focal Length

f±0.5% typical

Surface Figure

λ/10 at 633 nm before coating

Surface Quality

20-10 scratch and dig

Antireflection Coating

Broadband

Ravg ≤ 0.5% per surface

Narrowband

R ≤ 0.25% per surface

PLCX-
25.4-38.1-
SF11

49.2

49.8

50.9

51.2

-2.1

52.2