Cemented 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.
Features:
- Four broad spectral ranges
- Spectrally Flat Retardance
- Retardations of λ/2 and λ/4
Cemented Achromatic Waveplates Specifications:
Material |
Crystal Quartz & MgF2 |
Construction |
Cemented |
Retardance |
λ/4 and λ/2 |
Wavelength ranges |
450-680nm, 700-1000nm, |
Retardance Tolerance |
< λ/100 over wavelangth range |
Dimension Tolerance |
+0.0/-0.2mm |
Clear Aperture |
> 90% central |
Wavefront Distortion |
λ/4@632.8nm |
Parallelism |
< 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