Approaching upper bounds to resonant nonlinear optical susceptibilities with inverse-designed quantum wells
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866912051963625472 |
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| author | Li, Hao Koutserimpas, Theodoros T. Monticone, Francesco Miller, Owen D. |
| author_facet | Li, Hao Koutserimpas, Theodoros T. Monticone, Francesco Miller, Owen D. |
| contents | We develop a unified framework for identifying bounds to maximum resonant nonlinear optical susceptibilities, and for "inverse designing" quantum-well structures that can approach such bounds. In special cases (e.g. second-harmonic generation) we observe that known bounds, a variety of optimal design techniques, and previous experimental measurements nearly coincide. But for many cases (e.g. second-order sum-frequency generation, third-order processes), there is a sizeable gap between the known bounds and previous optimal designs. We sharpen the bounds and use our inverse-design approach across a variety of cases, showing in each one that the inverse-designed QWs can closely approach the bounds. This framework allows for comprehensive understanding of maximum resonant nonlinearities, offering theoretical guidance for materials discovery as well as targets for computational design. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_20351 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Approaching upper bounds to resonant nonlinear optical susceptibilities with inverse-designed quantum wells Li, Hao Koutserimpas, Theodoros T. Monticone, Francesco Miller, Owen D. Optics We develop a unified framework for identifying bounds to maximum resonant nonlinear optical susceptibilities, and for "inverse designing" quantum-well structures that can approach such bounds. In special cases (e.g. second-harmonic generation) we observe that known bounds, a variety of optimal design techniques, and previous experimental measurements nearly coincide. But for many cases (e.g. second-order sum-frequency generation, third-order processes), there is a sizeable gap between the known bounds and previous optimal designs. We sharpen the bounds and use our inverse-design approach across a variety of cases, showing in each one that the inverse-designed QWs can closely approach the bounds. This framework allows for comprehensive understanding of maximum resonant nonlinearities, offering theoretical guidance for materials discovery as well as targets for computational design. |
| title | Approaching upper bounds to resonant nonlinear optical susceptibilities with inverse-designed quantum wells |
| topic | Optics |
| url | https://arxiv.org/abs/2409.20351 |