论文标题

构建合成手性光的局部手段:全球手性与手性极化

Structuring the local handedness of synthetic chiral light: global chirality versus polarization of chirality

论文作者

Rego, Laura, Ayuso, David

论文摘要

合成手性光实现超快和高效的分子手性成像。与标准的循环灯光不同,合成手性光的惯用性不依赖于光场的空间结构:它是在当地编码的,在手性轨迹中,电场矢量的尖端在空间中的每个点都在时间上吸引。合成手性光是局部性手性,已经在电偶极近似中,是一种高效的手性光子试剂。局部和全球性手性的合成手性光使我们能够在总信号强度的水平上选择性地淬灭所选分子对映异构体的非线性响应,同时将其最大化。表现出手性极化的合成手性光,使我们能够实现Young双缝实验的手性版本,从而导致对映射的光弯曲。在这里,我们将这两个新概念连接起来,并展示了一个人如何在空间中构建合成手性光的局部和全球手法,以及如何将这些局部和全球性能刻在手性分子的对映射敏感响应中,从而为超快,全光,全光,全光和高效的分子性成像创造新的机会。

Synthetic chiral light enables ultrafast and highly efficient imaging of molecular chirality. Unlike standard circularly polarized light, the handedness of synthetic chiral light does not rely on the spatial structure of the light field: it is encoded locally, in the chiral trajectory that the tip of the electric-field vector draws in time, at each point in space. Being locally chiral, already within the electric-dipole approximation, synthetic chiral light is a highly efficient chiral photonic reagent. Synthetic chiral light that is locally and globally chiral allows us to selectively quench the nonlinear response of a selected molecular enantiomer while maximizing it in its mirror twin at the level of total signal intensities. Synthetic chiral light that exhibits polarization of chirality allows us to realize a chiral version of Young's double-slit experiment that leads to enantio-sensitive light bending. Here we connect these two new concepts and show how one can structure the local and global handedness of synthetic chiral light in space, and how these local and global properties are imprinted in the enantio-sensitive response of the chiral molecules, creating new opportunities for ultrafast, all-optical and highly efficient imaging of molecular chirality.

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