Enhanced dynamic range spatio-spectral metrology of few-cycle laser pulses
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arXiv
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| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
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| _version_ | 1866911552243761152 |
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| author | Alexe, Cristian Liberman, Aaron Westerberg, Saga Angella, Andrea Talposi, Anda-Maria Löfquist, Erik Dumitru, Alice Okukura, Andrew H. D'Souza, Flanish Gustafsson, Cornelia Persson, Anders Guo, Chen Arnold, Cord Lundh, Olle Malka, Victor Ursescu, Daniel |
| author_facet | Alexe, Cristian Liberman, Aaron Westerberg, Saga Angella, Andrea Talposi, Anda-Maria Löfquist, Erik Dumitru, Alice Okukura, Andrew H. D'Souza, Flanish Gustafsson, Cornelia Persson, Anders Guo, Chen Arnold, Cord Lundh, Olle Malka, Victor Ursescu, Daniel |
| contents | Accurate spatio-temporal and spatio-spectral metrology is critical to the characterization and use of ultra-short, high-power lasers. The emergence of few cycle pulses, with bandwidths of tens or hundreds of nanometers, poses a significant challenge to existing metrology techniques. This is due both to large discrepancies in the sensitivities of the measurements at different wavelengths and to variation in the spectral intensity at those wavelengths. In this paper, the authors propose spectral filtering and stitching of the measurements as a robust, simple solution that enhances the dynamic range of the measurements, allowing accurate few-cycle pulse reconstruction. This enhancement is demonstrated using INSIGHT -- the most commonly used spatio-spectral measurement device -- as well as using IMPALA and spatially resolved Fourier transform spectrometry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_27815 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Enhanced dynamic range spatio-spectral metrology of few-cycle laser pulses Alexe, Cristian Liberman, Aaron Westerberg, Saga Angella, Andrea Talposi, Anda-Maria Löfquist, Erik Dumitru, Alice Okukura, Andrew H. D'Souza, Flanish Gustafsson, Cornelia Persson, Anders Guo, Chen Arnold, Cord Lundh, Olle Malka, Victor Ursescu, Daniel Optics Instrumentation and Detectors Accurate spatio-temporal and spatio-spectral metrology is critical to the characterization and use of ultra-short, high-power lasers. The emergence of few cycle pulses, with bandwidths of tens or hundreds of nanometers, poses a significant challenge to existing metrology techniques. This is due both to large discrepancies in the sensitivities of the measurements at different wavelengths and to variation in the spectral intensity at those wavelengths. In this paper, the authors propose spectral filtering and stitching of the measurements as a robust, simple solution that enhances the dynamic range of the measurements, allowing accurate few-cycle pulse reconstruction. This enhancement is demonstrated using INSIGHT -- the most commonly used spatio-spectral measurement device -- as well as using IMPALA and spatially resolved Fourier transform spectrometry. |
| title | Enhanced dynamic range spatio-spectral metrology of few-cycle laser pulses |
| topic | Optics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2603.27815 |