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We present the first experimental evidence, supported by theory and simulation, of spatiotemporal optical vortices (STOVs). Quantized STOVs are a fundamental element of the nonlinear collapse and subsequent propagation of short optical…

Spatiotemporal optical vortices (STOVs) are a new type of intrinsic optical orbital angular momentum (OAM) structure in which the OAM vector is orthogonal to the propagation direction [Optica 6, 1547, (2019)] and the optical phase…

Optics · Physics 2021-02-19 S. W. Hancock , S. Zahedpour , H. M. Milchberg

Spatiotemporal Optical Vortices (STOVs) are structured electromagnetic fields propagating in free space with phase singularities in the space-time domain. Depending on the tilt of the helical phase front, STOVs can carry both longitudinal…

Optics · Physics 2024-03-26 Pronoy Das , Sathwik Bharadwaj , Zubin Jacob

Spatiotemporal optical vortices (STOVs), as a kind of structured light pulses carrying transverse orbital angular momentum (OAM), have recently attracted significant research interest due to their unique photonic properties. However,…

Spatiotemporal optical vortices (STOVs) with spiral phase in the space-time domain, which carry intrinsic transverse orbital angular momentum (OAM), introduce a new degree of freedom to light beams and exhibit unique properties. While…

Optics · Physics 2025-04-17 Shunlin Huang , Peng Wang , Yilin Xu , Jun Liu , Ruxin Li

Spatiotemporal optical vortices (STOVs) are electromagnetic wave packets that transport a phase line singularity perpendicular to their propagation direction. We address the problem of the transverse orbital angular momentum (OAM) ``per…

Optics · Physics 2023-07-04 Miguel A. Porras

We show that the dynamics of high-intensity laser pulses undergoing self-focused propagation in a nonlinear medium can be understood in terms of the topological constraints imposed by the formation and evolution of spatiotemporal optical…

Optics · Physics 2024-03-08 M. S. Le , G. A. Hine , A. Goffin , J. P. Palastro , H. M. Milchberg

Light carrying transverse orbital angular momentum (T-OAM) in the form of spatiotemporal optical vortices (STOVs) is opening new degrees of freedom for structured light manipulation. Such spatiotemporal wavepackets hold significant…

Optics · Physics 2025-11-25 Jinxin Wu , Dan Wang , Qingqing Liang , Jianhua Hu , Jiahao Dong , Jijun Feng , Yi Liu

We identify a class of modal solutions for spatio-temporal optical vortex (STOV) electromagnetic pulses propagating in dispersive media with orbital angular momentum (OAM) orthogonal to propagation. We find that symmetric STOVs in vacuum…

Optics · Physics 2021-11-10 S. W. Hancock , S. Zahedpour , H. M. Milchberg

Recently, a spatiotemporal optical vortex (STOV) with a transverse orbital angular momentum (OAM) has been generated from coherent ultrafast pulses using mode-locked lasers. In contrast, we demonstrate theoretically and experimentally that…

Optics · Physics 2021-09-22 Amal Mirando , Yimin Zang , Qiwen Zhan , Andy Chong

Spatiotemporal optical vortices (STOVs) carry transverse orbital angular momentum and offer new degrees of freedom for light-matter interactions. Yet conventional focusing of STOVs introduces spatiotemporal astigmatism: the beam diffracts…

Spatiotemporal optical vortices (STOVs) are short pulses that present a vortex whose axis is perpendicular to the main propagation direction. We present analytic expressions for these pulses that satisfy exactly Maxwell's equation, by…

Optics · Physics 2024-06-05 S. Vo , R. Gutiérrez-Cuevas , M. A. Alonso

Recently, spatiotemporal optical vortices (STOVs) with transverse orbital angular momentum have emerged as a significant research topic. While various STOV fields have been explored, they often suffer from a critical limitation: the spatial…

Optics · Physics 2025-01-22 Haifa Fan , Qian Cao , Xin Liu , Andy Chong , Qiwen Zhan

Spatiotemporal optical vortex (STOV) with transverse orbital angular momentum (TOAM) can induce some novel properties in high energy density physics. However, the current STOV pulse energy is limited to the mJ level, which greatly hinders…

Spatiotemporal optical vortex (STOV) carrying transverse orbital angular momentum (OAM) enriches the family of vortex beams and exhibit unique properties. Typically, a high-order STOV with an intensity null degrades into multiple…

Optics · Physics 2025-02-18 Shunlin Huang , Xiong Shen , Renjing Chen , Jun Liu , Ruxin Li

Spatiotemporal optical vortices (STOV) are space-time structured light pulses with a unique topology that couples spatial and temporal domains and carry transverse orbital angular momentum (OAM). Up to now, their generation has been limited…

Spatiotemporal optical vortex (STOV) is a unique optical vortex with phase singularity in the space-time domain and the photons in a STOV can carry transverse orbital angular momentum (OAM). The STOV shows many fantastic properties which…

Optics · Physics 2022-02-01 Shunlin Huang , Peng Wang , Xiong Shen , Jun Liu , Ruxin Li

As a new degree of freedom for optical manipulation, recently spatiotemporal optical vortices (STOVs) carrying transverse orbital angular momentums have been experimentally demonstrated with pulse shapers. Here a spatiotemporal…

Optics · Physics 2022-02-08 Junyi Huang , Jiahao Zhang , Tengfeng Zhu , Zhichao Ruan

This compilation represents a summary of the main physical foundations underlying the structure and properties of spatio-temporal optical vortices (STOV). The general approach to the STOV description and characterization is based on the…

Optics · Physics 2024-11-12 Aleksandr Bekshaev

The non-intuitive spatiotemporal modal content of space-time optical vortices (STOVs) is calculated in a graded-index fiber supporting a large number of propagating modes. We discuss how a fiber supporting many modes allows to truly couple…

Optics · Physics 2025-04-03 Spencer W. Jolly , Julien Dechanxhe , Pascal Kockaert
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