Diffraction gratings and diffusion coefficient determination of acrylamide and polyacrylamide in sol-gel glass
Diffraction gratings and diffusion coefficient determination of acrylamide and polyacrylamide in sol-gel glass
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DOI：
10.1063/1.1757024
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发表时间：
2004-06-07
影响因子：
4
通讯作者：
Fimia, A
中科院分区：
文献类型：
--
作者：
Blaya, S;Murciano, A;Fimia, A
以丙烯酰胺为单体，三乙醇胺为共引发剂，微黄曙红为光引发剂，在光聚合溶胶-凝胶玻璃中记录全息光栅。尽管Cheben和Calvo已经在二氧化硅玻璃中引入了丙烯酸单体[Appl.Phys.Lett. 78，1490（2001）]，但还没有通过该方法生产公知的丙烯酰胺基组合物。在8 mJ/cm（2）的曝光量下获得了接近55%的衍射效率。全息光栅是不稳定的，我们利用这种不稳定性来确定丙烯酰胺和聚丙烯酰胺在这种玻璃中的扩散系数。(C)2004年，美国物理学会。
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. (C) 2004 American Institute of Physics.