Cutting Edge Optics Technology

ImagineOptix LCP Technology

Using Liquid Crystal Polymers (LCP), Photo-Alignment Layer (PAL) and a variety of dopants, we are able to create three-dimensional patterns of liquid crystals captured within a thin film (2-4um).

Actual LCP Thickness of 2um

Actual LCP Thickness of 2um
reactive LC photo alignment layer

“Standard” Thin-Film Fabrication Techniques

alignment layer processing

Geometric vs Dynamic Phase

(The Dynamic) Phase

dynamic Phase Term

The “normal” phase delay.

For example,

  • Prisms
  • Lenses
  • Phase gratings
  • Spatial Light Modulators (computer generated holograms)

All optical path length difference

(The Geometric) Phase

geometric phase term

(Reference, wave in vacuum)

(Isotropic media) “normal” phase delay called dynamic phase due to optical path length difference

(Anisotropic media)

“extra” phase delay

called geometric phase

Geometric Phase Hologram Theory

  • Phase encoded into orientation
  • Hologram, with primary, conjugate, and leakage waves
  • Spectral behavior depends on retardation not spatial profile
  • Features
    • around 100% efficient for most and interesting profiles
    • 1000s of radians, continuous phase profile
    • Max phase slope ~ π rad/µm (!)

Want to see how ImagineOptix can power your product?