Waveguide photodegradation studies have been carried out to investigate the photostabilities of a series of nonlinear optical chromophores doped into poly(methyl methacrylate) waveguide films. The films were exposed to optical wavelengths lying either within these materials’ main absorption bands or in the near-infrared region. Degradation studies were carried out in air, vacuum, and nitrogen environments at room temperature. Experimental results indicate that the principal photodegradation mechanism in operation is photo-oxidation. A simple analytical model indicated the relative sensitivity to photo-oxidation of the materials studied.
© 2000 Optical Society of America
(160.4330) Materials : Nonlinear optical materials
(160.4890) Materials : Organic materials
(310.2790) Thin films : Guided waves
(310.6860) Thin films : Thin films, optical properties
(350.5130) Other areas of optics : Photochemistry
Yitao Ren, Marek Szablewski, and Graham H. Cross, "Waveguide Photodegradation of Nonlinear Optical Organic Chromophores in Polymeric Films," Appl. Opt. 39, 2499-2506 (2000)