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The morphology of a reflection grating formed using a polymer-dispersed liquid crystalline material system is examined using low-voltage high-resolution scanning electron and transmission electron microscopy. The grating is formed by establishing a fringe pattern in the intensity profile of an argon-ion laser line (λ = 488 nm) leading to a periodic anisotropic cure through the thickness of the film...
Holographic transmission gratings are formed by the anisotropic visible laser radiation curing of a multifunctional acrylate monomer blended with the liquid crystal (LC) mixture E7. This results in an anisotropic spatial distribution of phase-separated LC droplets within the photochemically cured polymer matrix. The morphology of thin films (5-20 μm) containing the gratings is examined by low-voltage,...
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