Waveplates (retardation plates or phase shifters) are made from materials which exhibit birefringence. The velocites of the extraordinary and ordinary rays through the birefringent material varies inversely with their refractive indices. Specification of our waveplate as follow: *Dimension Tolerance:+/-0.20mm to +0.01/-0.01mm *ThicknessTolerance:+/-0.20mmto +/-0.005mm *Surface Quality:80-50 to 10-5 *Flatness: at 633nm lambda --...

Specification of our optical waveplates as follow: *Dimension Tolerance:+/-0.20mm to +0.01/-0.01mm *ThicknessTolerance:+/-0.20mmto +/-0.005mm *Surface Quality:80-50 to 10-5 *Flatness: at 633nm lambda -- lambda/20per 25mm *Clear Aperture:80% -- 100% *Parallelism(arc min):3min -- 3sec *Crystals directional precision:5min to 30sec *Bevel:0.3+/-0.20mm* 45degree *No Bevel *Coating R<0.2%  *Other wavelengths within the range...

We supply optical waveplate.   Waveplates (retardation plates or phase shifters) are made from materials which exhibit birefringence. The velocites of the extraordinary and ordinary rays through the birefringent material varies inversely with their refractive indices. Specification of our waveplate as follow: *Dimension Tolerance:+/-0.20mm to +0.01/-0.01mm *ThicknessTolerance:+/-0.20mmto +/-0.005mm *Surface Quality:80-50 to 10-5...

Our waveplates within wavelengths range of 200-2300nm, including octadic-wave (lambda/8), quarter-wave (lambda/4), half-wave (lambda/2) and full-wave (lambda) plates, are widely used in synthesis and analysis of light in various states of polarization. Low-Order Waveplates are much better than the multi-order wave-plates because of its thinner thickness(less than 0.5 mm).Better temperature(38), Wavelength(1.5nm)and incident angle(4.5...