Yangjian Cai

Jun 27, 2024 | nature.com | Xin A. Liu |Qian Cao |Yangjian Cai

AbstractOptical spatiotemporal vortices with transverse photon orbital angular momentum (OAM) have recently become a focal point of research. In this work we theoretically and experimentally investigate optical spatiotemporal vortices with radial and azimuthal quantum numbers, known as spatiotemporal Laguerre-Gaussian (STLG) wavepackets. These 3D wavepackets exhibit phase singularities and cylinder-shaped edge dislocations, resulting in a multi-ring topology in its spatiotemporal profile.

Jan 19, 2024 | pubs.acs.org | Maoxin Zhang |Baokai Wang |Yangjian Cai |Dayong Jin

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