Abstract
The enhanced backscattering from organic laser gain media that are
bounded with one-dimensional (1-D) and two-dimensional (2-D)
rough metal films was investigated. We prepared several organic
optical gain materials by doping laser-active dyes in matrices of
acrylic polymers. These materials produced efficient and broadband
fluorescence emission in the visible wavelengths during the pumping of
a pulsed YAG or cw argon laser. These gain materials were sliced
and coupled with 1-D or 2-D randomly rough gold films with large
slopes. An experimental investigation was carried out with a He–Ne
laser as the scattering source and the optical gain provided by a cw
argon laser. The enhanced backscattering and the satellite peaks
located about the enhanced-backscattering peak were obviously
amplified, with their widths narrowed. These experimental results
agree well with previous theoretical predictions.
© 2001 Optical Society of America
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