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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2406.03854 |
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| _version_ | 1866914827291590656 |
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| author | Alirezaee, H. Skupin, S. Vaicaitis, V. Demircan, A. Babushkin, I. Bergé, Luc Morgner, U. |
| author_facet | Alirezaee, H. Skupin, S. Vaicaitis, V. Demircan, A. Babushkin, I. Bergé, Luc Morgner, U. |
| contents | The polarization states of terahertz (THz) radiation generated in a photo-ionized gas driven by strong two- or multi-frequency fields with locally controlled polarization are studied. We reveal a universal property of the resulting THz waveforms: the ellipticity of their polarization state increases linearly with the frequency. This ``linear chirp of ellipticity'' makes plasma-based THz generation unique among other THz sources. However, it also puts some constraints on the polarization properties of the generated THz radiation. We derive a general expression for the THz ellipticity and demonstrate how the polarization states of the generated THz waveforms can be manipulated and controlled by the polarization of the pump pulses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_03854 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Universal properties of locally generated terahertz waveforms from polarization-controlled two- and multi-color ionizing fields Alirezaee, H. Skupin, S. Vaicaitis, V. Demircan, A. Babushkin, I. Bergé, Luc Morgner, U. Optics The polarization states of terahertz (THz) radiation generated in a photo-ionized gas driven by strong two- or multi-frequency fields with locally controlled polarization are studied. We reveal a universal property of the resulting THz waveforms: the ellipticity of their polarization state increases linearly with the frequency. This ``linear chirp of ellipticity'' makes plasma-based THz generation unique among other THz sources. However, it also puts some constraints on the polarization properties of the generated THz radiation. We derive a general expression for the THz ellipticity and demonstrate how the polarization states of the generated THz waveforms can be manipulated and controlled by the polarization of the pump pulses. |
| title | Universal properties of locally generated terahertz waveforms from polarization-controlled two- and multi-color ionizing fields |
| topic | Optics |
| url | https://arxiv.org/abs/2406.03854 |