Theoretical Analysis of Chirped Pulse Effects on Plasma Formation in Water Liquid Jet
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908666972602368 |
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| author | Hilal, Shireen Ismagilov, Azat O. Tsypkin, Anton N. Melnik, Maksim V. |
| author_facet | Hilal, Shireen Ismagilov, Azat O. Tsypkin, Anton N. Melnik, Maksim V. |
| contents | We present a theoretical study of how linear chirp controls plasma density in a water jet using a two-stage framework. Stage I solves carrier-population and current equations at a single point, driven by a chirped super-Gaussian pulse. By fixing bandwidth and normalizing for intensity, we isolate a chirp-only response of plasma density, which exceeds unity and shows a consistent advantage for negative over positive chirp. Stage II propagates the field in water via the angular-spectrum method and applies the same equations across space. Normal dispersion reverses the trend: the chirp-only plasma density decreases as chirp grows, negative chirp remains less detrimental, and suppression is strongest for longer FTL pulses (e.g., 80 fs) due to dispersion-induced temporal spreading and spatio-temporal desynchronization. This study separates spectral-phase effects from bandwidth and intensity, yields testable predictions for water jets, and provides a foundation for future experiments and self-consistent propagation models. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_16310 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Theoretical Analysis of Chirped Pulse Effects on Plasma Formation in Water Liquid Jet Hilal, Shireen Ismagilov, Azat O. Tsypkin, Anton N. Melnik, Maksim V. Optics We present a theoretical study of how linear chirp controls plasma density in a water jet using a two-stage framework. Stage I solves carrier-population and current equations at a single point, driven by a chirped super-Gaussian pulse. By fixing bandwidth and normalizing for intensity, we isolate a chirp-only response of plasma density, which exceeds unity and shows a consistent advantage for negative over positive chirp. Stage II propagates the field in water via the angular-spectrum method and applies the same equations across space. Normal dispersion reverses the trend: the chirp-only plasma density decreases as chirp grows, negative chirp remains less detrimental, and suppression is strongest for longer FTL pulses (e.g., 80 fs) due to dispersion-induced temporal spreading and spatio-temporal desynchronization. This study separates spectral-phase effects from bandwidth and intensity, yields testable predictions for water jets, and provides a foundation for future experiments and self-consistent propagation models. |
| title | Theoretical Analysis of Chirped Pulse Effects on Plasma Formation in Water Liquid Jet |
| topic | Optics |
| url | https://arxiv.org/abs/2511.16310 |