Polarizing Window

Substrate

UV grade fused silica, BK7

Surface Figure

< λ/10 @ 633nm

Surface Quality

10/5 [S/D]

Chamfer

0.25mm @ 45°

Clear Aperture

> 85% of central area

Incident Angle

56.3°±3°

Extinction Ratio

Tp/Ts >1000:1

Laser-induced Damage Threshold

>5 J/cm2 (1064nm, 10ns)

Crystal quartz is widely used as wave blocking medium.

The birefringence of quartz can be used in quarter wave plate and polarizer. Quartz should not be processed or used at temperatures higher than 490℃

Crystalline quartz is also used in electronic filters and vibrators.