论文标题
圆形极化中的attosend计量学
Attosecond metrology in circular polarization
论文作者
论文摘要
具有线性两极化的光脉冲的Attosend计量学是非常成功的研究领域的基础。从涵盖二维极化状态的广义计量学中，可以预期更广泛的影响，从而显着研究了电子时间尺度上的手术现象。在这里，我们介绍并展示了一种全面的方法，用于将椭圆形到圆形极化的脉冲的产生和完全表征。该一代依赖于前所未有的简单插件设备。为了进行表征，我们将Sparrow（Stokes-参数和Attosond解析的光波形重建）介绍，该重构将Attsecond-Metrology信息编码为极化平面中的光发射角，并访问Attosecond脉冲的所有四个Stokes参数。我们的研究表明，具有椭圆形到完全圆形极化的Attsecond计量学的物理透明方案，适用于基于台式和加速器的光源，该光源将在最基本的时间尺度上释放手性分子，磁性材料和新型的chiroptical现象的研究。
Attosecond metrology with linearly polarized light pulses is the basis of a highly successful research area. An even broader impact can be expected from a generalized metrology that covers two-dimensional polarization states, enabling notably the study of chiroptical phenomena on the electronic time scale. Here, we introduce and demonstrate a comprehensive approach to the generation and complete characterization of elliptically to circularly polarized attosecond pulses. The generation relies on a simple plug-in device of unprecedented simplicity. For the characterization, we introduce SPARROW (Stokes-Parameter and Attosecond Resolved Reconstruction of Optical Waveforms), which encodes the attosecond-metrology information into the photoemission angle in the polarization plane and accesses all four Stokes parameters of the attosecond pulses. Our study demonstrates a physically transparent scheme for attosecond metrology with elliptical to fully circular polarizations, applicable to both table-top and accelerator-based light sources, which will unlock studies of chiral molecules, magnetic materials and novel chiroptical phenomena on the most fundamental time scales.
