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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…

Spatio-temporal optical vortices (STOVs) are a new type of optical orbital angular momentum (OAM) with optical phase circulation in space-time. In prior work [N. Jhajj et al., Phys. Rev X 6, 031037 (2016)], we demonstrated that a STOV is a…

Optics · Physics 2020-01-06 S. W. Hancock , S. Zahedpour , A. Goffin , H. M. Milchberg

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 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) 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

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

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 demonstrate the controlled spatiotemporal transfer of transverse orbital angular momentum (OAM) to electromagnetic waves: the spatiotemporal torquing of light. This is a radically different situation than OAM transfer to longitudinal,…

Optics · Physics 2023-07-14 S. W. Hancock , S. Zahedpour , A. Goffin , H. M. Milchberg

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…

Light carrying orbital angular momentum (OAM) holds unique properties and boosts myriad applications in diverse fields from micro- to macro-world. Endeavors have been made to manipulate the OAM in order to generate on-demand structured…

Optics · Physics 2023-05-16 Shunlin Huang , Ning Zhang , Xu Lu , Jun Liu , Jinping Yao

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…

We confirm the existence of a new bulk medium quasiparticle with transverse orbital angular momentum (tOAM) and elucidate its physical origin. The tOAM structure is driven by torques induced by the ponderomotive force of the light in the…

Plasma Physics · Physics 2026-03-17 M. S. Le , S. W. Hancock , N. Tripathi , H. M. Milchberg

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

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 (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 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

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

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

Diffraction of a relativistically-strong light can produce high-order harmonics via the relativistic oscillating window mechanism. In this process, the characteristics of the 2D electron dynamics at the diffraction screen can be imprinted…

Plasma Physics · Physics 2025-05-07 Ke Hu , Xinju Guo , Longqing Yi
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