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Cemented Achromatic Waveplate

Cemented Achromatic WaveplateCemented Achromatic Waveplates are built by cementing the Quartz waveplate and MgF2 waveplate together. The use of crystalline Quartz with MaF2 minimizes the wavelength dependence of the retardation such that a nearly flat spectral response is achieved over the entire operating range of the achromatic wave plate. The flat response of an Achromatic Waveplate is ideal for use with tunable lasers, multiple laser-line systems, and other broad spectrum sources.



- Four broad spectral ranges

- Spectrally Flat Retardance

- Retardations of λ/2 and λ/4

Cemented Achromatic Waveplates Specifications:



 Crystal Quartz & MgF2




 λ/4 and λ/2

 Wavelength ranges

 450-680nm, 700-1000nm,
 950-1300nm, 1200-1650nm

 Retardance Tolerance

 < λ/100 over wavelangth range

 Dimension Tolerance


 Clear Aperture

 > 90% central

 Wavefront Distortion



 < 1 arc minute

 Surface Quality

 40-20 scratch-dig

 AR Coating

 Broadband, R<1% per surface

 Damage Threshold

 > 500mJ/cm2, 20ns, 20Hz @1064nm

Ordering Information:

       Description: Cemented Achromatic WavePlate

       Part Number:  WPAC–Retardance–Wavelength–Dimension–Coating–Mount

       Retardance:  λ/2 or λ/4

       Wavelength: 450-680nm, 700-1000nm, 950-1300nm, 1200-1650nm

         Dimension:   Φ10.0mm, Φ12.7mm, Φ15.0mm, Φ20.0mm, Φ25.4mm or Others.

         Coating:     AR coating or Uncoated

          Mount:     Φ25.4mm, Φ30.0mm or Unmounted