What are Multi-Twist Retarders?

A Multi-Twist Retarder (MTR) is a waveplate-like retardation film that offers precise and customized levels of broadband, narrowband or multiple band retardation in a single thin film.

Our MTRs are Pattern-able, Super-Achromatic, and Low Cost!

How It Works

Through our proprietary design methodologies, we can customize MTRs to achieve precise retardation at select wavelengths or select bands, or even multiple bands in a single film.

Technology Comparison

Traditional RetarderImagineOptix Retarder
Retardation Values¼λ, ½λ ¼λ, ½λ, Fractional
PatterningNoneMultiple Domains (any pattern)
Color FilterNoneChromatic
WavelengthNarrow, AchromaticNarrow, Achromatic, Super-Achromatic (400-4000nm)
Thickness100um-3mm 2-4 µm
LayersMultiple Layers/Plates 1-3 Layers of Films

Click here for Technical Details including Specification and Benefits of our Multi-Twist Retarders


FAQs about Multi-Twist Retarders

Q. Can you actually make an optical element that could act one way in one wavelength band, and act very differently at another wavelength band?
A. Yes. By tuning the different layers of the MTR design we can make a waveplate that has different retardances based on wavelength.

Q. Can your MTRs be patterned so that we can precisely control the retardation with a specific profile?
A. Yes. Our technology can be patterned such that different regions have different orientations. This patterning can be discreet or continuously varying depending on your requirements.

White Papers about Multi-Twist Retarders

Additional Applications for Multi-Twist Retarders


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Some Questions to Consider

These are typical questions we like to ask when engaging you as a customer to help best assess and understand your needs and challenges.

  • What are the key issues with your current solution?
  • Describe the major optical challenges you are facing. Is it low efficiency? Is there a unique polarization? a difficult phase profile to work with? or something else?
  • Are there specific technology features (i.e., diffraction, polarization, retardation, wavefront, focus, opto-electronics, other) that you are interested in?
  • What are the characteristics of the light source you need to work with (i.e., polarization, bandwidth, collimation, intensity, coherence)?
  • What are the desired characteristics of the light at the output of the system?
  • Are there any specific tests, experiments, or prototypes that would best validate a solution for your problem?
  • What is the timeframe within which you need a demonstrated solution?
  • Are there any unique or challenging form factor requirements? Thickness requirements? Large active area requirements?