High precision 1/2 1/4 waveplate

UPT can provide many kinds of waveplates follow:
Zero-order waveplates
Ture zero-order waveplates
Dual-wavelength waveplates
Achromatic waveplates
Low-order/multi-order waveplates

UPT can offer high-precision waveplates with wavelengths from 260-2000nm, such
as 1/2 and 1/4 waveplates. Other retardation waveplates upon requirement.
Materials: Crystal Quartz, MgF2 Crystal
Dimension: 2*2mm~Ф100mm
Wavelength: @260nm、 @355nm、 @532nm、 @635nm、 @808nm、 @1064nm、 @1310nm、
@1550nm、
@2000nm, accept OEM wavelength and OEM retardation
Wavefront Distortion: λ/10
Surface Quality: 20/10
Retardation tolerance: λ/100~λ/500
Parallelism: ±3"
Holder：Unmount or mounted