In this work, a novel single-shot pump-probe technique based on mirror array is proposed, which can be used to investigate the dynamics of nonlinear absorption with a single-shot femtosecond laser. Using this unique mirror array, the dispersion of femtosecond pulse laser caused by time delay can be avoided and the delay time can be increased effectively. Additionally, the energy requirements of the femtosecond laser are relatively low compared with conventional single-shot pump-probe technique. The validity of this technique is demonstrated by investigating the nonlinear absorption dynamics in ZnSe and symmetrical phenoxazinium bromine salt with 220 fs pulses at a wavelength of 515 nm.

中文翻译：

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使用镜像阵列的单次泵浦探测技术

在这项工作中，提出了一种基于反射镜阵列的新型单次泵浦探测技术，可用于研究单次飞秒激光器的非线性吸收动力学。使用这种独特的反射镜阵列，可以避免时间延迟引起的飞秒脉冲激光色散，有效增加延迟时间。此外，与传统的单次泵浦探测技术相比，飞秒激光器的能量需求相对较低。通过研究 ZnSe 和对称吩恶嗪溴盐中的非线性吸收动力学，在 515 nm 波长下具有 220 fs 脉冲，证明了该技术的有效性。