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采用基于遗传算法(Genetic algorithm)的自适应反馈系统,成功实现了二溴甲烷多个拉曼振动模式的选择激发.通过脉冲分析方法(二次谐波频率分辨光谱开关和二次谐波交叉频率分辨光谱开关)(SHG-FROG和SHG-XFROG),在时域和频域上对优化脉冲进行还原和分析,结果表明:空间光学调制器(SLM)将优化脉冲调制成具有负啾啁特性的脉冲串.该选择激发实验的成功实现验证了相干控制自适应系统在研究复杂分子系统方面具有良好的应用前景.

参考文献

[1] Zou Wendong.Theoretical analysis of photoacoustic raman effect in solids[J].Chinese Journal of Quantum Electronics (量子电子学报),2003,2:162 (in Chinese).
[2] Weinacht T C,White J L,et al.Toward strong field mode-selective chemistry[J].J.Phys.Chem.A,1999,103:10166-10168.
[3] Prokhorenko V I,Nagy A M.Coherent control of the population transfer in complex solvated molecules at weak excitation[J].J.Chem.Phys.,2005,122:184502.
[4] Oron D,Dudovich N,et al.Quantum control of anti-Stokes Raman processes[J].Phys.Rev.A,2002,65:043408.
[5] Judson R S,Rabitz H.Teaching lasers to control molecules[J].Phys.Rev.Lett.,1992,68:1500.
[6] DeLong K W.Comparison of ultrashort-pulse frequency-resolved-optical-gating traces for three common beam geometries[J].J.Opt.Soc.Am.B,1994,11:1595-1608.
[7] Trebino R,Delong K W.Messuring ultrashort pulses in the time-frequency domain using frequency-resolved optical gating[J].Rev.Sci.Instrum.,1997,68:3277.
[8] Linden S,Giesse H,Kuhi.Cross FROG-a new method for amplitude and phase characterization of weak ultrashort pulses[J].Phys.Stat.Sol.(b),1998,206:119.
[9] Riter R E,Willard D M,et al.Water immobilization at surfactant interfaces in reverse micelles[J].J.Phys.Chem.B,1998,102:2705-2714.
[10] Dennen R S,Piotrowski E A,et al.Raman and infrared spectral data for CH2Br2,CHDBr2,and CD2Br2[J].J.Chem.Phys.,1968,49:4385.
[11] Herzberg G.Molecular Spectra and Molecular Structure,Ⅱ Infrared and Raman Spectra of Polyatomic Molecules[M].New York:Van Nostrand,1945.
[12] Dudovich N,Oron D,Silberberg Y.Single-pulse coherently controlled nonlinear Raman spectroscopy and microscopy[J].Nature,2002,418:512.
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