Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.cplett.2004.03.007
| DC Field | Value | |
|---|---|---|
| dc.title | Mechanisms of excited-state enhancement of optical non-linearity in poly(distyrybenzene-co-triethylene glycol) | |
| dc.contributor.author | Ma, G. | |
| dc.contributor.author | He, J. | |
| dc.contributor.author | Tang, S.H. | |
| dc.date.accessioned | 2014-10-16T09:32:08Z | |
| dc.date.available | 2014-10-16T09:32:08Z | |
| dc.date.issued | 2004-04-11 | |
| dc.identifier.citation | Ma, 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.issn | 00092614 | |
| dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/97173 | |
| dc.description.abstract | We 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.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.cplett.2004.03.007 | |
| dc.source | Scopus | |
| dc.type | Article | |
| dc.contributor.department | PHYSICS | |
| dc.description.doi | 10.1016/j.cplett.2004.03.007 | |
| dc.description.sourcetitle | Chemical Physics Letters | |
| dc.description.volume | 388 | |
| dc.description.issue | 1-3 | |
| dc.description.page | 105-109 | |
| dc.description.coden | CHPLB | |
| dc.identifier.isiut | 000220727000022 | |
| Appears in Collections: | Staff Publications | |
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