Myers Jeffrey A, Lewis Kristin L M, Tekavec Patrick F, Ogilvie Jennifer P
Department of Physics and Biophysics, University of Michigan, Ann Arbor, MI 48109, USA.
Opt Express. 2008 Oct 27;16(22):17420-8. doi: 10.1364/oe.16.017420.
We report two-color two-dimensional Fourier transform electronic spectroscopy obtained using an acousto-optic pulse-shaper in a pump-probe geometry. The two-color setup will facilitate the study of energy transfer between electronic transitions that are widely separated in energy. We demonstrate the method at visible wavelengths on the laser dye LDS750 in acetonitrile. We discuss phase-cycling and polarization schemes to optimize the signal-to-noise ratio in the pump-probe geometry. We also demonstrate that phase-cycling can be used to separate rephasing and nonrephasing signal components.
我们报道了在泵浦-探测几何结构中使用声光脉冲整形器获得的双色二维傅里叶变换电子光谱。这种双色装置将有助于研究在能量上广泛分离的电子跃迁之间的能量转移。我们在乙腈中的激光染料LDS750的可见波长下演示了该方法。我们讨论了相位循环和偏振方案，以优化泵浦-探测几何结构中的信噪比。我们还证明了相位循环可用于分离重相位和非重相位信号分量。
