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    Rights statement: This is the peer reviewed version of the following article: Del Pozo, G., Bennis, N., Quintana, X., Otón, J. M., Lin, J., Xie, L. H., Wei, Q., Xia, R., Bernardo-Gavito, R., Granados, D. and Cabanillas-Gonzalez, J. (2015), Fluorene-based rib waveguides with optimized geometry for long-term amplified spontaneous emission stability. J. Polym. Sci. Part B: Polym. Phys., 53: 1040–1045. doi:10.1002/polb.23730 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/polb.23730/abstract This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Fluorene-based rib waveguides with optimized geometry for long-term amplified spontaneous emission stability

Research output: Contribution to journalJournal article

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  • Gonzalo Del Pozo
  • Noureddine Bennis
  • Xabier Quintana
  • Jose Manuel Otõn
  • Jinyi Lin
  • Linghai H. Xie
  • Qi Wei
  • Ruidong Xia
  • Ramon Bernardo-Gavito
  • Daniel Granados
  • Juan Cabanillas-Gonzalez
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<mark>Journal publication date</mark>1/08/2015
<mark>Journal</mark>Journal of Polymer Science Part B: Polymer Physics
Issue number15
Volume53
Number of pages6
Pages (from-to)1040-1045
Publication statusPublished
Early online date11/04/15
Original languageEnglish

Abstract

Amongst the different optoelectronic applications of conjugated polymers, waveguide amplifiers and optically pumped lasers are those requiring larger photochemical stability, owing to the large irradiation conditions under operation. In this context, suitable waveguide optimization enabling the reduction of amplified spontaneous emission (ASE) threshold values appears as important as synthetic chemistry protocols to promote polymer robustness against photo-oxidation. In this work, we develop rib waveguides with different geometries based on four different fluorene-based compounds and assess the influence of rib confinement on ASE properties. We observe ASE threshold values as low as 8.9 × 10-4 mJ cm-2, being among the lowest threshold values reported so far on blue emitting polymer/oligomer waveguides. We demonstrate that the enhanced ASE efficiency on some of these rib waveguides leads to a fivefold increase in operation lifetime respect to spin-coated slab waveguides, thus confirming the impact of waveguide geometry on ASE operation stability.

Bibliographic note

This is the peer reviewed version of the following article: Del Pozo, G., Bennis, N., Quintana, X., Otón, J. M., Lin, J., Xie, L. H., Wei, Q., Xia, R., Bernardo-Gavito, R., Granados, D. and Cabanillas-Gonzalez, J. (2015), Fluorene-based rib waveguides with optimized geometry for long-term amplified spontaneous emission stability. J. Polym. Sci. Part B: Polym. Phys., 53: 1040–1045. doi:10.1002/polb.23730 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/polb.23730/abstract This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.