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A Streak Camera Study of Amplified Spontaneous Emission in Polyfluorene Thin Film
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 Title & Authors
A Streak Camera Study of Amplified Spontaneous Emission in Polyfluorene Thin Film
Shin, Hee-Won; Kim, Yong-Rok;
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 Abstract
We report on the photoluminescence (PL) properties of poly[2,7-(9-9-dioctylfluorene)] (PF) thin film under strong optical pumping using a streak camera system. When the excitation energy density increases above , the emission spectrum becomes narrower and PL decay curve comes to be faster simultaneously. These behaviors are clear evidence of Amplified Spontaneous Emission (ASE) due to a waveguided Stimulated Emission in slab structure of thin film. ASE threshold of is comparable with previous reports and PF is attractive as a gain medium for plastic lasers.
 Keywords
Amplified Spontaneous Emission (ASE);Polyfluorene thin film;Streak camera;
 Language
English
 Cited by
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