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450-650nm Achromatic Quarter Waveplate with Aperture 18mm and D1” mount

Code: 2081-001



Material Quartz+MgF2 Wavelength 450-650nm
Retardation λ/4 Aperture 18mm
Surface Quality 20/10 S/D Parallelism <1 arc Sec
Retardation Tolerance < λ/100 Damage Threshold >500 MW/cm2
Coating AR coating Mount D1” mounted

Achromatic waveplate or retarders is made from two different substrate materials such as crystal quartz and magnesium fluoride. For the single material waveplates the working wavelength is very limited because of the dispersion of the material. While Achromatic Waveplate use two different kinds of material, the dispersions of the birefringence are also different. Hence such waveplate is not sensitive to the wavelength change.

Hangzhou Shalom EO offers the custom achromatic waveplates or retarders upon customer's request, and the stocked modules are available in fast delivery and low cost.

1” mounted
4 weeks
MgF2 Crystals

MgF2 Crystals

  • Broad transparent spectrum: 0.11~7.5μm
  • Chemically stable.
  • High resistance to mechanical and thermal shock
  • Used for optical prisms, waveplates, lenses and windows
  • Crystals ingot, blanks, polished and coated components available