Current Applied Physics, Vol.2, No.3, 249-252, 2002
Fabrication of reflective holographic gratings with polyurethane acrylate (PUA)
The effects of prepolymer molecular structure were studied in terms of reflection efficiency, polymer grating shrinkage and electro-optic property. Especially, efforts have been made to quantify holographic grating shrinkage during fabrication by modifying the chemical structure of segmented polyurethane acrylates. (C) 2002 Elsevier Science B.V. All rights reserved.