基于整形器的色散扫描用于表征偏振整形激光场
Shaper-based dispersion scan for the characterization of polarization-shaped laser fields
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中文总结 AI 辅助
该研究提出一种结合4f脉冲整形器与偏振分辨d-scan测量的框架，可合成并重建多种复杂偏振定制飞秒激光场，其重建结果与模拟目标场高度吻合，为相关研究提供了灵活平台。
中文摘要 AI 辅助
我们提出了一种基于脉冲整形器的色散扫描（d-scan）框架，用于联合产生和表征偏振定制的飞秒激光场。通过将可编程4f脉冲整形器与偏振分辨d-scan测量相结合，该框架可实现复杂时变偏振态的可编程合成与重建。我们针对多类矢量场验证了其性能，包括反向旋转圆偏振脉冲对、反向啁啾的反向旋转圆偏振脉冲、偏振门脉冲，以及利用多项式、周期性和离散光谱相位函数的多脉冲序列。重建的时域电场与时变椭圆率与模拟目标场表现出极佳的一致性，且能准确复现各类脉冲的关键特征。结合可编程脉冲整形的多功能性与d-scan技术的稳健性，该方法为超快光子学及光与物质相互作用研究中偏振定制超短激光场的产生与验证提供了灵活平台。
英文摘要
We present a pulse-shaper-based dispersion-scan (d-scan) framework for the combined generation and characterization of polarization-tailored femtosecond laser fields. By integrating a programmable $4f$ pulse shaper with polarization-resolved d-scan measurements, the framework enables the programmable synthesis and reconstruction of complex time-dependent polarization states. We demonstrate its capabilities for several classes of vector fields, including counter-rotating circularly polarized pulse pairs, oppositely chirped counter-rotating circularly polarized pulses, polarization-gate pulses, and multi-pulse sequences utilizing polynomial, periodic and discrete spectral phase functions. The reconstructed temporal electric fields and time-dependent ellipticities show excellent agreement with the simulated target fields and accurately reproduce the defining features of each pulse class. By combining the versatility of programmable pulse shaping with the robustness of the d-scan technique, this approach provides a flexible platform for the generation and validation of polarization-tailored ultrashort laser fields in ultrafast photonics and light-matter interaction studies.
