CVD Laser Grade ZnSe

λ/20 @ 10.6 µm

40-20 scratch-dig

See How to Clean Optics

10ZS: central 85% of diameter
ZNW: central 90% of diameter

10ZS: ±0.2 mm
ZNW: +0.0/-0.1 mm

7.1 x 10^-6 K^-1 @ 273 K

18 W m^-1 K^-1 @ 300 K

<100 kW/cm² CW @ 10.6 µm, >113 µm spot diameter, <30 s duration