Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.cplett.2004.03.007
DC FieldValue
dc.titleMechanisms of excited-state enhancement of optical non-linearity in poly(distyrybenzene-co-triethylene glycol)
dc.contributor.authorMa, G.
dc.contributor.authorHe, J.
dc.contributor.authorTang, S.H.
dc.date.accessioned2014-10-16T09:32:08Z
dc.date.available2014-10-16T09:32:08Z
dc.date.issued2004-04-11
dc.identifier.citationMa, G., He, J., Tang, S.H. (2004-04-11). Mechanisms of excited-state enhancement of optical non-linearity in poly(distyrybenzene-co-triethylene glycol). Chemical Physics Letters 388 (1-3) : 105-109. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cplett.2004.03.007
dc.identifier.issn00092614
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/97173
dc.description.abstractWe present femtosecond optical Kerr effect (OKE) studies of the third-order non-linear optical response of poly (distyrybenzene-co-triethylene glycol) (PDTG) under both resonance and off-resonance conditions. The excited-state enhancement of OKE signal was observed under resonance excitation. The temporal behavior of resonant OKE signal was found to be characterized by a fast component with time constant of about 250 fs and a slow component with lifetime of about 420 ps, which are attributed to delocalized π-electron and intra-chain singlet exciton migration among the backbone of the polymer, respectively. The off-resonance OKE signal only was seen to consist of an ultrafast response due entirely to delocalized electrons contribution. © 2004 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.cplett.2004.03.007
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1016/j.cplett.2004.03.007
dc.description.sourcetitleChemical Physics Letters
dc.description.volume388
dc.description.issue1-3
dc.description.page105-109
dc.description.codenCHPLB
dc.identifier.isiut000220727000022
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