Communication

Ultra-Broad Optical Amplification and Two-Colour Amplified Spontaneous Emission in Binary Blends of Insulated Molecular Wires

  1. Sergio Brovelli1,†,
  2. Tersilla Virgili2,
  3. Marta M. Mroz3,
  4. Giuseppe Sforazzini4,
  5. Alberto Paleari5,
  6. Harry L. Anderson4,*,
  7. Guglielmo Lanzani6,*,
  8. Franco Cacialli1,*

Article first published online: 20 AUG 2010

DOI: 10.1002/adma.201000895

Issue

Advanced Materials

Advanced Materials

Volume 22, Issue 33, pages 3690–3694, September 1, 2010

Additional Information

How to Cite

Brovelli, S., Virgili, T., Mroz, M. M., Sforazzini, G., Paleari, A., Anderson, H. L., Lanzani, G. and Cacialli, F. (2010), Ultra-Broad Optical Amplification and Two-Colour Amplified Spontaneous Emission in Binary Blends of Insulated Molecular Wires. Adv. Mater., 22: 3690–3694. doi: 10.1002/adma.201000895

Author Information

  1. 1

    London Centre for Nanotechnology, and Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT (UK)

  2. 2

    IFN-CNR c/o Dipartimento di Fisica, Politecnico di Milano, Piazza L. Da Vinci 32, Milano 20133 (Italy)

  3. 3

    Dipartimento di Fisica, Politecnico di Milano, Piazza L. Da Vinci 32, Milano 20133 (Italy)

  4. 4

    Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA (UK)

  5. 5

    Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 53, I-20125 Milano (Italy)

  6. 6

    Center for the Nano Science and Technology of IIT at POLIMI, via Pascoli 70/3, Milano 20133 (Italy)

  1. †

    Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)

*Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA (UK)

Publication History

  1. Issue published online: 20 AUG 2010
  2. Article first published online: 20 AUG 2010
  3. Manuscript Received: 12 MAR 2010

Funded by

  • EC EU-contract:. Grant Number: MRTN-CT-2006–036040
  • THREADMILL, EPSRC, The Royal Society (Wolfson Refurbishment Scheme), the EC FP6 Programme, under contract N.. Grant Number: ERAS-CT-2003–980409, the EC FP7 (2007–2013) under grant agreement N. 212311

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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).

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