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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.07417 |
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| _version_ | 1866915215850864640 |
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| author | Koivurova, Matias Joshi, Rajneesh |
| author_facet | Koivurova, Matias Joshi, Rajneesh |
| contents | We study the connection between cross-spectral purity and spatiotemporal separability of nonstationary (pulsed) scalar fields. It is found that in the case of complete coherence, there is a two-way relation between global cross-spectral purity and spatiotemporal separability of the field. Moreover, we show that cross-spectral purity generalizes the notion of spatiotemporal separability to partially coherent fields, due to the separability of the correlation functions. We also briefly discuss simple self-referencing linear measurement methods that can reveal cross-spectral purity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_07417 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Cross-spectral purity: a generalization of spatiotemporal separability Koivurova, Matias Joshi, Rajneesh Optics We study the connection between cross-spectral purity and spatiotemporal separability of nonstationary (pulsed) scalar fields. It is found that in the case of complete coherence, there is a two-way relation between global cross-spectral purity and spatiotemporal separability of the field. Moreover, we show that cross-spectral purity generalizes the notion of spatiotemporal separability to partially coherent fields, due to the separability of the correlation functions. We also briefly discuss simple self-referencing linear measurement methods that can reveal cross-spectral purity. |
| title | Cross-spectral purity: a generalization of spatiotemporal separability |
| topic | Optics |
| url | https://arxiv.org/abs/2412.07417 |