光学时空天幕的构建

IF 23.4 Q1 OPTICS
Houan Teng, Xin Liu, Nianjia Zhang, Haihao Fan, Guoliang Chen, Qian Cao, Jinzhan Zhong, Xinrui Lei, Qiwen Zhan
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引用次数: 0

摘要

光子天幕的创建和操作为光-物质相互作用、光通信和纳米计量学提供了新的自由度。由于天幕内的局域涡旋是由相结构的扭曲和旋度产生的,因此光的轨道角动量对其形成至关重要。虽然已经提出了许多天空粒子织构,但它们都是在空间域中形成的,并由纵向轨道角动量诱导。在这里,我们从理论上提出并实验观察皮秒脉冲波包内的时空天空,通过时空波包的矢量雕刻产生。在矢量场的时空分布中出现的天元织构包含了所有可能的偏振态。基于横向轨道角动量构建的时空天幕,与空间天幕不同,没有垂直于天幕平面的螺旋扭曲,显示出潜在的抗变形或扰动的稳定性。这些结果扩展了skyrmion家族,并为光学准粒子提供了新的见解,可能导致光学计量,传感和数据存储方面的先进应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Construction of optical spatiotemporal skyrmions

Construction of optical spatiotemporal skyrmions

The creation and manipulation of photonic skyrmions provide a novel degree of freedom for light-matter interactions, optical communication and nanometrology. Since the localized vortex within skyrmions arises from the twist and curl of the phase structure, the orbital angular momentum of light is essential for their construction. While numerous skyrmionic textures have been proposed, they are formed within the spatial domain and induced by the longitudinal orbital angular momentum. Here we theoretically propose and experimentally observe spatiotemporal skyrmions within a picosecond pulse wavepacket, generated through vectorial sculpturing of spatiotemporal wavepackets. The skyrmionic textures emerge within the spatiotemporal distribution of a vector field encompass all possible polarization states. Constructed upon the transverse orbital angular momentum, spatiotemporal skyrmions, in contrast to spatial skyrmions, exhibit no helical twisting perpendicular to the skyrmion plane, demonstrating potential stability against deformations or perturbations. These results expand the skyrmion family and offer new insights into optical quasiparticles, potentially leading to advanced applications in optical metrology, sensing, and data storage.

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来源期刊
Light-Science & Applications
Light-Science & Applications 数理科学, 物理学I, 光学, 凝聚态物性 II :电子结构、电学、磁学和光学性质, 无机非金属材料, 无机非金属类光电信息与功能材料, 工程与材料, 信息科学, 光学和光电子学, 光学和光电子材料, 非线性光学与量子光学
自引率
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发文量
803
审稿时长
2.1 months
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