Formation, stability, and highly nonlinear optical response of excitons to intense light fields interacting with two-dimensional materials
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866929501031628800 |
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| author | Molinero, Eduardo B. Amorim, Bruno Malakhov, Mikhail Cistaro, Giovanni Jiménez-Galán, Álvaro Ivanov, Misha Picón, Antonio San-José, Pablo Silva, Rui E. F. |
| author_facet | Molinero, Eduardo B. Amorim, Bruno Malakhov, Mikhail Cistaro, Giovanni Jiménez-Galán, Álvaro Ivanov, Misha Picón, Antonio San-José, Pablo Silva, Rui E. F. |
| contents | Excitons play a key role in the linear optical response of 2D materials. However, their significance in the highly nonlinear optical response to intense mid-infrared light has often been overlooked. Using hBN as a prototypical example, we theoretically demonstrate that excitons play a major role in this process. Specifically, we illustrate their formation and stability in intense low-frequency fields, where field strengths surpass the Coulomb field binding the electron-hole pair in the exciton. Additionally, we establish a parallelism between these results and the already-known physics of Rydberg states using an atomic model. Finally, we propose an experimental setup to test the effect of excitons in the nonlinear optical response |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_16647 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Formation, stability, and highly nonlinear optical response of excitons to intense light fields interacting with two-dimensional materials Molinero, Eduardo B. Amorim, Bruno Malakhov, Mikhail Cistaro, Giovanni Jiménez-Galán, Álvaro Ivanov, Misha Picón, Antonio San-José, Pablo Silva, Rui E. F. Optics Mesoscale and Nanoscale Physics Excitons play a key role in the linear optical response of 2D materials. However, their significance in the highly nonlinear optical response to intense mid-infrared light has often been overlooked. Using hBN as a prototypical example, we theoretically demonstrate that excitons play a major role in this process. Specifically, we illustrate their formation and stability in intense low-frequency fields, where field strengths surpass the Coulomb field binding the electron-hole pair in the exciton. Additionally, we establish a parallelism between these results and the already-known physics of Rydberg states using an atomic model. Finally, we propose an experimental setup to test the effect of excitons in the nonlinear optical response |
| title | Formation, stability, and highly nonlinear optical response of excitons to intense light fields interacting with two-dimensional materials |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2307.16647 |