Polymer Film Retarder

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Polymer Film Retarder

Polymer Film Retarders
Meadowlark Optics is pleased to present our Bare Polymer Retarder film. Our proprietary polymer film provides high retardance accuracy in a cost effective product which can be provided in almost any configuration and quantity. The temperature dependence of the nominal retardance is approximately 0.01%/°C, which provides a very stable and versatile polarization solution.
Manufactured in-house for wavelengths between 400 and 1800nm, this retarder is ideal for applications requiring a high precision, thin and cost effective solution. We are also able to tune the retardance to your Angle of Incidence to optimize performance. AR coatings are available on a special order basis.
Standard shapes and retardance values are available when quick turn-around is needed. We can also accommodate requests for custom shapes, sizes (up to 4 inches) and retardance values.
Please contact a Meadowlark Optics Sales Engineer for assistance with your custom requirements.

  • Very thin profile
  • Thermally stable
  • High volume scalable
  • AR coatings available
  • Custom retardance available

Specifications - Polymer Film Retarder
Substrate Material Polymer Film
Thickness 0.005 inch (127 µm), nominal
Wavelength Range 400-1800 nm
Retardance Ranges Single Layer: 20-1600 nm
Double Layer: 1600-3000 nm
Reflectance ~4% per surface
Retardance Variation ≤ 2%/in.
Retardance Accuracy ± λ/300
Acceptance Angle ± 6˚
Transmitted Wavefront Distortion
≤ 2λ (P-V @ 633)
[≤ λ/2 (RMS @ 633)]
Surface Quality 80-50 scratch-dig
Beam Deviation ≤ 30 arc-sec
Operating Temperature -40˚C to +60˚ C


Ordering Information - Polymer Film Retarder
Clear Aperture (in.) Thickness  (in.) Dimensions (in.) Part Number
0.45 0.01 Ø0.50 λ/4 Wave: BQ-050-λ
λ/2 Wave: BH-050-λ
0.90 0.01 Ø1.00 λ/4 Wave: BQ-100-λ
λ/2 Wave: BH-100-λ
1.35 0.01 Ø1.50 λ/4 Wave: BQ-150-λ
λ/2 Wave: BH-150-λ
1.80 0.01 Ø2.00 λ/4 Wave: BQ-200-λ
λ/2 Wave: BH-200-λ
0.45 x 0.45 0.01 0.50 x 0.50
λ/4 Wave: BQ-050x050-λ
λ/2 Wave: BH-050x050-λ
0.90 x 0.90 0.01 1.00 x 1.00
λ/4 Wave: BQ-100x100-λ
λ/2 Wave: BH-100x100-λ
1.35 x 1.35 0.01 1.50 x 1.50
λ/4 Wave: BQ-150x150-λ
λ/2 Wave: BH-150x150-λ
1.80 x 1.80 0.01 2.00 x 2.00
λ/4 Wave: BQ-200x200-λ
λ/2 Wave: BH-200x200-λ