Air Spaced Zero Order Waveplate

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Air spaced zero order waveplate is constructed by two quartz plates installed in a mount, to form a air gap between the two quartz plates. The difference in thickness between the two plates determines the retardance. Zero order waveplates offer a substantially lower dependence on temperature and wavelength change than multi-order waveplates.


  •  High Damage Threshold 

  • Better Temperature Bandwidth 

  • Wide Wavelength Bandwidth 

  • AR coated and Mounted

  • RoHS Compliant


Material Crystal Quartz
Dimension Tolerance +0.0/-0.2 mm
Surface Quality 20/10 scratch and dig
Clear Aperture >90 % central area
Wavefront Distortion <λ/8 @ 632.8 nm
Parallelism(for single plate) <1 arc second
Retardation Tolerance <λ/300
AR Coating R<0.25 % @ central wavelength
Damage Threshold >10 J/cm2, 20 ns, 20 Hz @1064 nm
Type Air Spaced