Needle beams and structured space-time wavepackets
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908691369820160 |
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| author | Grunwald, Ruediger Bock, Martin |
| author_facet | Grunwald, Ruediger Bock, Martin |
| contents | Recent research on needle beams and space-time wavepackets (STWPs) is presented. Quasi-nondiffracting STWPs propagate at stable spatial and temporal localization over extended distances. In a simple model, STWPs are interpreted as being composed of differential needle beams. Simulations indicate that pulsed Bessel-like needle beams can reach higher spectral and temporal homogeneity compared to spatio-spectrally shaped focused Gaussian beams. The interference of femtosecond needle beam arrays leads to nondiffracting self-imaging in space and time. High-speed switching of STWPs with combined optical systems, orbital angular momentum generation with self-torque and other emerging fields of research are addressed |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_03993 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Needle beams and structured space-time wavepackets Grunwald, Ruediger Bock, Martin Optics Recent research on needle beams and space-time wavepackets (STWPs) is presented. Quasi-nondiffracting STWPs propagate at stable spatial and temporal localization over extended distances. In a simple model, STWPs are interpreted as being composed of differential needle beams. Simulations indicate that pulsed Bessel-like needle beams can reach higher spectral and temporal homogeneity compared to spatio-spectrally shaped focused Gaussian beams. The interference of femtosecond needle beam arrays leads to nondiffracting self-imaging in space and time. High-speed switching of STWPs with combined optical systems, orbital angular momentum generation with self-torque and other emerging fields of research are addressed |
| title | Needle beams and structured space-time wavepackets |
| topic | Optics |
| url | https://arxiv.org/abs/2512.03993 |