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Influence of the ordered structure of short-chain polymer molecule all-trans-β-carotene on Raman scattering cross section in liquid |
| Qu Guan-Nan(曲冠男)a)b), OuYang Shun-Li(欧阳顺利)b), Wang Wei-Wei(王微微)b), Li Zuo-Wei(里佐威) a)b),Sun Cheng-Lin(孙成林)a)b)†, and Men Zhi-Wei(门志伟)b) |
| a State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;b College of Physics, Jilin University, Changchun 130012, China |
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Abstract We measured the resonant Raman spectra of all-trans-β-carotene in solvents with different densities and concentrations at different temperatures. The results demonstrated that the Raman scattering cross section (RSCS) of short-chain polymer all-trans-β-carotene is extremely high in liquid. Resonance and strong coherent weakly damped CC bond vibrating properties play important roles under these conditions. Coherent weakly damped CC bond vibration strength is associated with molecular ordered structure. All-trans-β-carotene has highly ordered structure and strong coherent weakly damped CC bond vibrating properties, which lead to large RSCS in the solvent with large density and low concentration at low temperature.
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Received: 12 May 2010
Revised: 02 August 2010
Accepted manuscript online:
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PACS:
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78.30.-j
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(Infrared and Raman spectra)
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78.40.-q
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(Absorption and reflection spectra: visible and ultraviolet)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10774057 and 10974067) and the Graduate Innovation Fund of Jilin University, China (Grant No. 20101046). |
Cite this article:
Qu Guan-Nan(曲冠男), OuYang Shun-Li(欧阳顺利), Wang Wei-Wei(王微微), Li Zuo-Wei(里佐威), Sun Cheng-Lin(孙成林), and Men Zhi-Wei(门志伟) Influence of the ordered structure of short-chain polymer molecule all-trans-β-carotene on Raman scattering cross section in liquid 2011 Chin. Phys. B 20 037803
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