We demonstrate optical amplification over a band >850 meV, via simultaneous exploitation of stimulated emission from mixed polymer systems in which energy transfer from the higher to lower-gap material is inhibited thanks to a complex interplay between morphology and interchain decoupling, driven by chain encapsulation. Amplified spontaneous emission (ASE) is obtained both with ad-hoc pumping into the relevant bands or with a single excitation (400nm) able to sustain ASE at both wavelengths simultaneously (two-colour ASE).© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Brovelli, S., Virgili, T., Mroz, M., Sforazzini, G., Paleari, A., Anderson, H., et al. (2010). Ultra-broad optical amplification and two-colour amplified spontaneous emission in binary blends of insulated molecular wires. ADVANCED MATERIALS, 22(33), 3690-3694 [10.1002/adma.201000895].
Ultra-broad optical amplification and two-colour amplified spontaneous emission in binary blends of insulated molecular wires
BROVELLI, SERGIO;PALEARI, ALBERTO MARIA FELICE;
2010
Abstract
We demonstrate optical amplification over a band >850 meV, via simultaneous exploitation of stimulated emission from mixed polymer systems in which energy transfer from the higher to lower-gap material is inhibited thanks to a complex interplay between morphology and interchain decoupling, driven by chain encapsulation. Amplified spontaneous emission (ASE) is obtained both with ad-hoc pumping into the relevant bands or with a single excitation (400nm) able to sustain ASE at both wavelengths simultaneously (two-colour ASE).© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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