Imaging light transport at the femtosecond scale
Paper, milk, clouds and white paint share a common property: they are opaque disordered media through which light scatters randomly rather than propagating in a straight path. For very thick and turbid media, indeed, light eventually propagates in a ‘diffusive’ way, i.e. similarly to how tea infuses...
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| Định dạng: | Online |
| Ngôn ngữ: | Tiếng Anh |
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Firenze University Press
2022
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| Truy cập trực tuyến: | ONIX_20220531_9788864537818_743 |
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| _version_ | 1869525347737796608 |
|---|---|
| author | Pattelli, Lorenzo |
| author_browse | Pattelli, Lorenzo |
| author_facet | Pattelli, Lorenzo |
| author_sort | Pattelli, Lorenzo |
| collection | Directory of Open Access Books |
| description | Paper, milk, clouds and white paint share a common property: they are opaque disordered media through which light scatters randomly rather than propagating in a straight path. For very thick and turbid media, indeed, light eventually propagates in a ‘diffusive’ way, i.e. similarly to how tea infuses through hot water. Frequently though, a material is neither perfectly opaque nor transparent and the simple diffusion model does not hold. In this work, we developed a novel optical-gating setup that allowed us to observe light transport in scattering media with sub-ps time resolution. An array of unexplored aspects of light propagation emerged from this spatio-temporal description, unveiling transport regimes that were previously inaccessibile due to the extreme time scales involved and the lack of analytical models. |
| format | Online |
| id | doab-20.500.12854ir-82655 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Firenze University Press |
| publisherStr | Firenze University Press |
| record_format | ojs |
| spelling | doab-20.500.12854ir-826552025-03-15T14:48:04Z Imaging light transport at the femtosecond scale Pattelli, Lorenzo Paper, milk, clouds and white paint share a common property: they are opaque disordered media through which light scatters randomly rather than propagating in a straight path. For very thick and turbid media, indeed, light eventually propagates in a ‘diffusive’ way, i.e. similarly to how tea infuses through hot water. Frequently though, a material is neither perfectly opaque nor transparent and the simple diffusion model does not hold. In this work, we developed a novel optical-gating setup that allowed us to observe light transport in scattering media with sub-ps time resolution. An array of unexplored aspects of light propagation emerged from this spatio-temporal description, unveiling transport regimes that were previously inaccessibile due to the extreme time scales involved and the lack of analytical models. 2022-06-02T04:14:49Z 2022-06-02T04:14:49Z 2022-05-31T10:30:36Z 2018 book ONIX_20220531_9788864537818_743 OCN: 1091251251 2612-8020 https://library.oapen.org/handle/20.500.12657/55459 9788864537818 9788864537801 9788892730854 https://directory.doabooks.org/handle/20.500.12854/82655 eng Premio Tesi di Dottorato open access image/jpeg image/jpeg image/jpeg Attribution 4.0 International Attribution 4.0 International Attribution 4.0 International https://library.oapen.org/bitstream/20.500.12657/55459/1/9788864537818.pdf https://library.oapen.org/bitstream/20.500.12657/55459/1/9788864537818.pdf https://library.oapen.org/bitstream/20.500.12657/55459/1/9788864537818.pdf Firenze University Press 10.36253/978-88-6453-781-8 10.36253/978-88-6453-781-8 2ec4474d-93b1-4cfa-b313-9c6019b51b1a 9788864537818 9788864537801 9788892730854 150 Florence open access |
| spellingShingle | Pattelli, Lorenzo Imaging light transport at the femtosecond scale |
| title | Imaging light transport at the femtosecond scale |
| title_full | Imaging light transport at the femtosecond scale |
| title_fullStr | Imaging light transport at the femtosecond scale |
| title_full_unstemmed | Imaging light transport at the femtosecond scale |
| title_short | Imaging light transport at the femtosecond scale |
| title_sort | imaging light transport at the femtosecond scale |
| url | ONIX_20220531_9788864537818_743 |
| work_keys_str_mv | AT pattellilorenzo imaginglighttransportatthefemtosecondscale |