Surface relief gratings from electrostatically layered azo dye films

被引:38
作者
He, JA
Bian, SP
Li, L
Kumar, J
Tripathy, SK [1 ]
Samuelson, LA
机构
[1] Univ Massachusetts, Dept Chem, Ctr Adv Mat, Lowell, MA 01854 USA
[2] Univ Massachusetts, Dept Phys, Ctr Adv Mat, Lowell, MA 01854 USA
[3] USA, Natick Soldier Ctr, Soldier & Biol Chem Command, Natick, MA 01760 USA
关键词
D O I
10.1063/1.126591
中图分类号
O59 [应用物理学];
学科分类号
摘要
Surface relief gratings (SRGs) were fabricated on composite films assembled by alternate electrostatic deposition of a polyelectrolyte, poly(dimethyldiallylammonium chloride), and an organic azo dye, congo red. The modulation of SRGs was found to increase with the thickness of the matrix films. Significant photochemical bleaching of the azo dye in the polymeric microenvironment as well as gradient-force-induced migration of the small azo dye contributes to the formation of the SRG structure. This finding demonstrates a facile method to fabricate SRGs for optical and information storage applications using commercially available azo dyes and polyelectrolytes. (C) 2000 American Institute of Physics. [S0003-6951(00)04922-6].
引用
收藏
页码:3233 / 3235
页数:3
相关论文
共 25 条