Study of holographic characteristics of photopolymers with two photoinitiator systems

The acrylamide-based photopolymer, one kind of holographic storage material that contains the photoinitiation triethanolamine and N-phenylglycine, was prepared and compared with the photopolymer material containing one photoinitiator. The results indicate that this material shows attractive recording characteristics, which include diffraction efficiency, refractive index modulation, sensitivity and so on. Temporal changes in transmission efficiency with various incident intensities are studied; the angular width of the photopolymer material is also measured.