中国物理B ›› 2011, Vol. 20 ›› Issue (3): 37803-037803.doi: 10.1088/1674-1056/20/3/037803

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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

欧阳顺利1, 王微微1, 门志伟1, 曲冠男2, 里佐威2, 孙成林2   

  1. (1)College of Physics, Jilin University, Changchun 130012, China; (2)State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;College of Physics, Jilin University, Changchun 130012, China
  • 收稿日期:2010-05-12 修回日期:2010-08-02 出版日期:2011-03-15 发布日期:2011-03-15
  • 基金资助:
    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).

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)   

  1. a State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China;b College of Physics, Jilin University, Changchun 130012, China
  • Received:2010-05-12 Revised:2010-08-02 Online:2011-03-15 Published:2011-03-15
  • Supported by:
    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).

摘要: 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.

关键词: Raman scattering cross-section, polymer molecule, ordered structure

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.

Key words: Raman scattering cross-section, polymer molecule, ordered structure

中图分类号:  (Infrared and Raman spectra)

  • 78.30.-j
78.40.-q (Absorption and reflection spectra: visible and ultraviolet)