Physical limits on Raman scattering: the critical role of pump and signal co-design
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866914962826330112 |
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| author | Amaolo, Alessio Chao, Pengning Maldonado, Thomas J. Molesky, Sean Rodriguez, Alejandro W. |
| author_facet | Amaolo, Alessio Chao, Pengning Maldonado, Thomas J. Molesky, Sean Rodriguez, Alejandro W. |
| contents | We present a method for deriving limits on Raman scattering in structured media and exploit it to constrain the maximum Raman signal resulting from a planewave incident on either a single Raman molecule in the vicinity of a structured medium or a designable Raman medium. Results pertaining to metallic and dielectric structures illustrate the importance of accounting for the nonlinear interplay between pump and signal fields, showing that treating the pump-focusing and signal-extraction processes separately, as in prior work, leads to unrealistic enhancements. The formulation could readily find applications in further enhancing surface-enhanced Raman scattering (SERS) spectroscopy and Raman-assisted lasing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_03332 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Physical limits on Raman scattering: the critical role of pump and signal co-design Amaolo, Alessio Chao, Pengning Maldonado, Thomas J. Molesky, Sean Rodriguez, Alejandro W. Optics We present a method for deriving limits on Raman scattering in structured media and exploit it to constrain the maximum Raman signal resulting from a planewave incident on either a single Raman molecule in the vicinity of a structured medium or a designable Raman medium. Results pertaining to metallic and dielectric structures illustrate the importance of accounting for the nonlinear interplay between pump and signal fields, showing that treating the pump-focusing and signal-extraction processes separately, as in prior work, leads to unrealistic enhancements. The formulation could readily find applications in further enhancing surface-enhanced Raman scattering (SERS) spectroscopy and Raman-assisted lasing. |
| title | Physical limits on Raman scattering: the critical role of pump and signal co-design |
| topic | Optics |
| url | https://arxiv.org/abs/2403.03332 |