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8 September 2004 Ultrafast photonics in doped polymer matrix
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Abstract
Using ultrafast pump-probe and pump-push-probe spectroscopy we highlight evidence of monodimensional photophysics coming from isolated chains of poly(9,9-dioctylfluorene) (PFO). We identify a large gain band with peak value of 2600 db/cm. By exploiting the peculiar one-dimensional physics of the isolated chain, we envisage a novel principle for ultrafast all-optical gain switching. Experiments suggest that the expected maximum rate of on-off switching over a broad wavelengths range (around 100 nm) can be as high as 300 GHz with large modulation depth.
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Tersilla Virgili, D. Marinotto, Guglielmo Lanzani, and Donal D. C. Bradley "Ultrafast photonics in doped polymer matrix", Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.549293; https://doi.org/10.1117/12.549293
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