Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.200901007
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dc.titleAtomic-layer craphene as a saturable absorber for ultrafast pulsed lasers
dc.contributor.authorBao, Q.
dc.contributor.authorZhang, H.
dc.contributor.authorWang, Y.
dc.contributor.authorNi, Z.
dc.contributor.authorYan, Y.
dc.contributor.authorShen, Z.X.
dc.contributor.authorLoh, K.P.
dc.contributor.authorTang, D.Y.
dc.date.accessioned2014-10-09T06:43:45Z
dc.date.available2014-10-09T06:43:45Z
dc.date.issued2009-10-09
dc.identifier.citationBao, Q., Zhang, H., Wang, Y., Ni, Z., Yan, Y., Shen, Z.X., Loh, K.P., Tang, D.Y. (2009-10-09). Atomic-layer craphene as a saturable absorber for ultrafast pulsed lasers. Advanced Functional Materials 19 (19) : 3077-3083. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.200901007
dc.identifier.issn1616301X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/88567
dc.description.abstractThe optical conductance of monolayer graphene is defined solely by the fine structure constant, α= e2/hc (where e is the electron charge, h is Dirac's constant and c is the speed of light). The absorbance has been predicted to be independent of frequency. In principle, the interband optical absorption in zero-gap graphene could be saturated readily under strong excitation dueto Pauli blocking. Here, use of atomic layer graphene as saturable absorber in a mode-locked fiber laser for the generation of ultrashort soliton pulses (756 fs) at the telecommunication band is demonstrated. The modulation depth can be tuned in a wide range from 66.5% to 6.2% by varying the graphene thickness. These results suggest that ultrathin graphene films are potentially useful as optical elements in fiber lasers. Graphene as a laser mode locker can have many merits such as lower saturation intensity, ultrafast recovery time, tunable modulation depth, and wideband tunability. © 2009 WILEY-VCH Verlag GmbH & Co. KGaA.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/adfm.200901007
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1002/adfm.200901007
dc.description.sourcetitleAdvanced Functional Materials
dc.description.volume19
dc.description.issue19
dc.description.page3077-3083
dc.description.codenAFMDC
dc.identifier.isiut000271132700007
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