外文题目: Spectral modulation observed in artificial photosynthetic complexes by real-time vibrational spectroscopy
作者: Du, Juan; Yuan, Wei; Xing, Xin; Miyatake, Tomohiro; Tamiaki, Hitoshi; Kobayashi, Takayoshi; Leng, Yuxin
刊名: Chem. Phys. Lett.
年: 2017 卷: 683 页： 154--159
英文关键词:
Ultrafast laser spectroscopy; Molecular vibration; Photosynthetic complex
2-DIMENSIONAL ELECTRONIC SPECTROSCOPY; EXCITATION-ENERGY TRANSFER; CHLOROPHYLL-A; RESONANCE RAMAN; ZINC CHLORINS; SOLID-STATE; CHLOROSOMES; DYNAMICS; SYSTEMS; ANTENNA
英文摘要:
By real-time vibrational spectroscopy using 6.8 fs pulses, real-time vibronic coupling in stair-like zinc chlorin aggregates was studied. Besides the observed fast excitonic relaxation, amplitudes of coherent molecular vibrations are found to be linearly dispersed from the resonant peak as a function of their own vibrational frequencies. In addition, the initial phases of the molecular vibrations exhibiting clear pi phase jump have been observed. All these results indicate that coherent vibrations in the artificial chlorosome intermediate energy exchange between the laser fields around the resonant peak and those separated from it by photon energy equal to the vibrational frequencies.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1016/j.cplett.2017.05.050


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