Partially temporal coherent spatiotemporal Laguerre-Gaussian and its propagation dynamics
Abstract
Optical spatiotemporal vortices carrying transverse photonic orbital angular momentum have become an intense research topic in the recent study of structured light fields. Despite being mainly studied within the framework of fully coherent optical pulses, the complex topologies of the light field are also investigated with partially coherent light sources, offering an alternative pathway in applications. In this work, we theoretically and experimentally investigate partially temporally coherent spatiotemporal Laguerre-Gaussian (STLG) field with independently controllable radial and azimuthal indices. The spatiotemporal topological information, carried by the structured amplified spontaneous emission source, are well preserved in the presence of inherent instantaneous random temporal phase fluctuations. Under combined spatiotemporal astigmatism and group velocity dispersion, the partially temporally coherent STLG field can be converted into spatiotemporal Hermite-Gaussian (STHG) field. Both structures maintain their spatiotemporal characteristics after propagating through scattering media. Partially temporally coherent structured light fields may offer new insights into photonic topology and complex wave dynamics, with potential applications in high-fidelity optical communications and high-dimensional information processing in highly scattering environments.
Related
- Programmable spatiotemporal shaping for partially coherent structured wave packets
- Hidden transverse-flow topology in partially coherent structured light
- Optimizing twisted partially coherent vortex beams for ground-based laser ablation propulsion in space
- Bounds on Shaping Partially Coherent Microwaves with Programmable Scattering Systems
- Quantum teleportation with partially entangled joint measurements induced by coherent errors
BibTeX
@misc{wu2026partially,
title = {{Partially temporal coherent spatiotemporal Laguerre-Gaussian and its propagation dynamics}},
author = {Mengxiang Wu and Youngbin Park and Nianjia Zhang and Taemin Son and Qiwen Zhan and Andy Chong and Qian Cao},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.39832},
eprint = {2610.39832},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.39832},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Partially temporal coherent spatiotemporal Laguerre-Gaussian and its propagation dynamics
AU - Mengxiang Wu
AU - Youngbin Park
AU - Nianjia Zhang
AU - Taemin Son
AU - Qiwen Zhan
AU - Andy Chong
AU - Qian Cao
PY - 2026
DA - 2026/10/29
PB - arXiv
DO - 10.48550/arxiv.2610.39832
UR - https://arxiv.org/abs/2610.39832
AB - Optical spatiotemporal vortices carrying transverse photonic orbital angular momentum have become an intense research topic in the recent study of structured light fields. Despite being mainly studied within the framework of fully coherent optical pulses, the complex topologies of the light field are also investigated with partially coherent light sources, offering an alternative pathway in applications. In this work, we theoretically and experimentally investigate partially temporally coherent spatiotemporal Laguerre-Gaussian (STLG) field with independently controllable radial and azimuthal indices. The spatiotemporal topological information, carried by the structured amplified spontaneous emission source, are well preserved in the presence of inherent instantaneous random temporal phase fluctuations. Under combined spatiotemporal astigmatism and group velocity dispersion, the partially temporally coherent STLG field can be converted into spatiotemporal Hermite-Gaussian (STHG) field. Both structures maintain their spatiotemporal characteristics after propagating through scattering media. Partially temporally coherent structured light fields may offer new insights into photonic topology and complex wave dynamics, with potential applications in high-fidelity optical communications and high-dimensional information processing in highly scattering environments.
ER -