Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 247, Issue 11-12, Pages 2953-2957Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201000339
Keywords
graphene; graphene polymer composite; saturable absorber; ultrafast laser
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Funding
- EPSRC [EP/G042357/1, EP/G030480/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G030480/1, EP/G042357/1] Funding Source: researchfish
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We exfoliate graphite in both aqueous and non-aqueous environments through mild sonication followed by centrifugation. The dispersions are enriched with monolayers. We mix them with polymers, followed by slow evaporation to produce optical quality composites. Nonlinear optical measurements show similar to 5% saturable absorption. The composites are then integrated into fiber laser cavities to generate 630 fs pulses at 1.56 mu m. This shows the viability of solution phase processing for graphene based photonic devices. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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