High-energy tunable ultraviolet pulses generated by optical leaky wave in filamentation
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866909429400600576 |
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| author | Xu, Litong Xi, Tingting |
| author_facet | Xu, Litong Xi, Tingting |
| contents | Ultraviolet pulses could open up new opportunities for the study of strong-field physics and ultrafast science. However, the existing methods for generating ultra-violet pulses face difficulties in fulfilling the twofold requirements of high energy and wavelength tunability simultaneously. Here, we theoretically demonstrate the generation of high-energy and wavelength tunable ultraviolet pulses in preformed air-plasma channels via the leaky wave emission. The output ultraviolet pulse has a tunable wavelength ranging from 250 nm to 430 nm and an energy level up to sub-mJ. An octave-spanning ultraviolet supercontinuum with a flatness better than 3 dB can also be obtained via longitudinally modulated dispersion. Such a high-energy tunable ultraviolet light source may provide promising opportunities for characterization of ultrafast phenomena such as molecular breakup, and also an important driving source for the generation of high-energy attosecond pulses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_13173 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High-energy tunable ultraviolet pulses generated by optical leaky wave in filamentation Xu, Litong Xi, Tingting Optics Ultraviolet pulses could open up new opportunities for the study of strong-field physics and ultrafast science. However, the existing methods for generating ultra-violet pulses face difficulties in fulfilling the twofold requirements of high energy and wavelength tunability simultaneously. Here, we theoretically demonstrate the generation of high-energy and wavelength tunable ultraviolet pulses in preformed air-plasma channels via the leaky wave emission. The output ultraviolet pulse has a tunable wavelength ranging from 250 nm to 430 nm and an energy level up to sub-mJ. An octave-spanning ultraviolet supercontinuum with a flatness better than 3 dB can also be obtained via longitudinally modulated dispersion. Such a high-energy tunable ultraviolet light source may provide promising opportunities for characterization of ultrafast phenomena such as molecular breakup, and also an important driving source for the generation of high-energy attosecond pulses. |
| title | High-energy tunable ultraviolet pulses generated by optical leaky wave in filamentation |
| topic | Optics |
| url | https://arxiv.org/abs/2407.13173 |