Red-green-blue laser emissions from dye-doped poly(vinyl alcohol) films

A microscope slide acting as a passive waveguide was coated by three separate poly(vinyl alcohol) films that were doped with Coumarin 460, Disodium Fluorescein, and Rhodamine 640 perchlorate. On collinear pumping by a nitrogen laser, these dyes furnished primary red-green-blue laser emissions that w...

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Bibliographic Details
Published inApplied optics (2004) Vol. 41; no. 9; p. 1725
Main Authors Yap, Seong-Shan, Siew, Wee-Ong, Tou, Teck-Yong, Ng, Seik-Weng
Format Journal Article
LanguageEnglish
Published United States 20.03.2002
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Summary:A microscope slide acting as a passive waveguide was coated by three separate poly(vinyl alcohol) films that were doped with Coumarin 460, Disodium Fluorescein, and Rhodamine 640 perchlorate. On collinear pumping by a nitrogen laser, these dyes furnished primary red-green-blue laser emissions that were collected and waveguided by the microscope slide but exited from both ends. Frosting the waveguide exit introduced light scattering at the glass-air interface and spatially overlaid the red-green-blue laser emissions that emerged as a uniform white-light beam.
ISSN:1559-128X
DOI:10.1364/AO.41.001725