Diffraction gratings and diffusion coefficient determination of acrylamide and polyacrylamide in sol-gel glass

作者：Blaya S^*; Murciano A; Acebal P; Carretero L; Ulibarrena M; Fimia A

来源：Applied Physics Letters, 2004, 84(23): 4765-4767.

DOI：10.1063/1.1757024

We describe the recording of holographic gratings in a photopolymerizable sol-gel glass based on acrylamide as monomer, triethanolamine as coinitiator, and yellowish eosin as photoinitiator. Although acrylic monomers have been introduced in silica glass by Cheben and Calvo [Appl. Phys. Lett. 78, 1490 (2001)], the well-known acrylamide based composition has not yet been produced by this method. Diffraction efficiencies close to 55% were obtained with an exposure of 8 mJ/cm(2). The holographic gratings were not stable and we made use of this instability to determine the diffusion coefficients of acrylamide and polyacrylamide inside this glass.

• 出版日期2004-6-7