Heat Generation in Spatially Confined Solids Through Electronic Light Scattering
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910819788259328 |
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| author | Kharintsev, Sergey Battalova, Elina |
| author_facet | Kharintsev, Sergey Battalova, Elina |
| contents | In this Letter, we study the optical heating of spatially dispersive solids due to electronic light scattering (ELS), a phenomenon driven by indirect optical transitions. In this process, a spatial heterogeneity generates an optical near-field photon with expanded momentum, leading to electron-photon momentum matching, followed by thermalization of the electron system promoting optical heating. We experimentally demonstrate this effect by melting spatially confined semiconductor (Si) and metal (Au) under continuous-wave laser pump within the transparency window. ELS is a dominant physical process in media with strong spatial dispersion, underlying a variety of thermo-optical applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_05922 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Heat Generation in Spatially Confined Solids Through Electronic Light Scattering Kharintsev, Sergey Battalova, Elina Optics Applied Physics In this Letter, we study the optical heating of spatially dispersive solids due to electronic light scattering (ELS), a phenomenon driven by indirect optical transitions. In this process, a spatial heterogeneity generates an optical near-field photon with expanded momentum, leading to electron-photon momentum matching, followed by thermalization of the electron system promoting optical heating. We experimentally demonstrate this effect by melting spatially confined semiconductor (Si) and metal (Au) under continuous-wave laser pump within the transparency window. ELS is a dominant physical process in media with strong spatial dispersion, underlying a variety of thermo-optical applications. |
| title | Heat Generation in Spatially Confined Solids Through Electronic Light Scattering |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2412.05922 |