Journal
OPTICS EXPRESS
Volume 17, Issue 19, Pages 16766-16775Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.016766
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Funding
- Spanish Ministry of Education and Science [MAT 2007-63319]
- Consolider-Ingenio [CSD2007-00007]
- EU
- Spanish Ministry of Education and Science
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Hybrid organic-inorganic monomode waveguides of conjugated polymers on porous silicon (PS) substrates have been fabricated. Different low refractive index PS substrates, varying from 1.46 down to 1.18 have been studied. Amplified spontaneous emission (ASE) has been observed for all the samples and the ASE threshold has been monitored as a function of the PS refractive index. A decrease in the ASE threshold is detected when the PS refractive index decreases. These results have been analysed in the frame of a four level waveguide amplifier model and the theoretical predictions are in agreement with the experimental data. (C) 2009 Optical Society of America
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