Precision Achromatic Waveplates (Retarders)

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  • Broad Spectral Range
  • λ/100 Retardance Accuracy
  • λ/4 and λ/2 Retardance
  • High Damage Threshold of 500 W/cm2

Precision Achromatic Waveplates (Retarders) consist of a polymer stack layered between two precision BK7 windows, and are available in standard λ/4 and λ/2 options for common visible and NIR wavelengths. These waveplates (retarders) will experience less than 1% retardance change over a ±10° angle of incidence. Each Precision Achromatic Waveplates (Retarders) is mounted in a metal ring with the fast axis clearly marked.