一、题目：Theory meets spectroscopy: ensemble and single- molecule spectroscopic studies of ultrafast energy transfer processes in light harvesting systems
二、主讲人：陈立鹏
三、时间：2017年12月27日（星期三），下午15:30
四、地点：A4-218 (四友之家)
内容摘要：To a large extent, our knowledge of the photoinduced dynamics of molecular systems at the atomic level is shaped by nonlinear femtosecond spectroscopy. Traditionally, nonlinear femtosecond spectroscopy is an ensemble spectroscopy, performed on ensembles of identical chromophores in the gas phase or in the liquid phase. Modern femtosecond spectroscopy comprises a set of various third-order or higher-order technique including, for example, fluorescence up conversion, transient absorption, and photon echo spectroscopy. Very recently, the portfolio of femtosecond techniques has been extended towards single-molecule detection by the development of fluorescence-detected double-pump single-molecule spectroscopy. With this technique, a temporal resolution of about ten femtoseconds has been achieved. The technique permits the real-time monitoring of not only electronic populations, but also of electronic and vibrational coherences for individual molecules.
主讲人简介：陈立鹏德国慕尼黑工业大学洪堡学者。新加坡南洋理工大学材料科学系博士。主要从事超快激子，电子传输动力学的研究。目前已在J. Chem. Phys, Phys. Chem. Chem. Phys, J. Phys. Chem. Lett, Phys. Rev. B.上发表多篇文章。
