基于非共线光学参量放大的飞秒时间分辨荧光光谱技术是一种新的超快光谱研究方法。 文章研究了荧光放大的参量过程。 超连续的种子光其瞬时光强可以被线性放大。 由于系统高达107的放大能力, 泵浦脉冲能量的微小不稳定性在最终放大输出信号中将产生很大起伏。 提出了一种利用圆锥辐射作为参考消除此干扰的方法。 研究表明, 探测的荧光动力学曲线有显著改善。

Femtosecond time-resolved fluorescence spectra technique based on non-collinear optical parametric amplification is a new method for ultrafast spectroscopy research. In the present report, the authors discuss the dynamic range for amplifying fluorescence. The supercontinuum seed can be amplified linearly to its transient intensity. Due to large amplification ratio up to 107, small instability in pump pulse energy produces large fluctuation in final output amplitude. Here the authors introduce a method using cone emission as reference to overcome this difficulty. The results show significant improvement in fluorescence dynamics curve.