Strong molecular alignment in anisotropic fluid media
Picosecond polarised fluorescence studies of rhodamine 6G molecules in a 100 μm free ethylene glycol jet show the production of strong molecular alignment with a degree of ordering between one to two orders of magnitude greater than that attainable for similar systems using conventional fluid alignm...
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| Published in | Chemical physics letters Vol. 260; no. 3; pp. 441 - 446 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
27.09.1996
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| Online Access | Get full text |
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| Summary: | Picosecond polarised fluorescence studies of rhodamine 6G molecules in a 100 μm free ethylene glycol jet show the production of strong molecular alignment with a degree of ordering between one to two orders of magnitude greater than that attainable for similar systems using conventional fluid alignment techniques. Using a novel variation of the polarised picosecond single-photon counting technique, it has been possible to prepare a range of non-equilibrium molecular orientational distributions in the jet and observe their subsequent evolution. The imposition of order in the flow is seen to have a distinct effect on molecular motion, indicating a strong anisotropy in θ and /gf rotational diffusion dynamics. |
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| ISSN: | 0009-2614 1873-4448 |
| DOI: | 10.1016/0009-2614(96)00841-X |