Nonresonant Raman control of ferroelectric polarization
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918137000099840 |
|---|---|
| author | Shi, Jiaojian Heide, Christian Xu, Haowei Shen, Yuejun Henstridge, Meredith Sedwick, Isabel Mangu, Anudeep Peng, Xinyue Zhang, Shangjie Trigo, Mariano Heinz, Tony F. Li, Ju Nelson, Keith A. Baldini, Edoardo Zhou, Jian Ghimire, Shambhu Reis, David A. Lindenberg, Aaron M. |
| author_facet | Shi, Jiaojian Heide, Christian Xu, Haowei Shen, Yuejun Henstridge, Meredith Sedwick, Isabel Mangu, Anudeep Peng, Xinyue Zhang, Shangjie Trigo, Mariano Heinz, Tony F. Li, Ju Nelson, Keith A. Baldini, Edoardo Zhou, Jian Ghimire, Shambhu Reis, David A. Lindenberg, Aaron M. |
| contents | Important advances have recently been made in the search for materials with complex multi-phase landscapes that host photoinduced metastable collective states with exotic functionalities. In almost all cases so far, the desired phases are accessed by exploiting light-matter interactions via the imaginary part of the dielectric function through above-bandgap or resonant mode excitation. Nonresonant Raman excitation of coherent modes has been experimentally observed and proposed for dynamic material control, but the resulting atomic excursion has been limited to perturbative levels. Here, this challenge is overcome by employing nonresonant ultrashort pulses with low photon energies well below the bandgap. Using mid-infrared pulses, ferroelectric reversal is induced in lithium niobate, and the large-amplitude mode displacements are characterized through femtosecond stimulated Raman scattering and second harmonic generation. This approach, validated by first-principle calculations, defines a novel method for synthesizing hidden phases with unique functional properties and manipulating complex energy landscapes at reduced energy consumption and ultrafast speeds. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_10131 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nonresonant Raman control of ferroelectric polarization Shi, Jiaojian Heide, Christian Xu, Haowei Shen, Yuejun Henstridge, Meredith Sedwick, Isabel Mangu, Anudeep Peng, Xinyue Zhang, Shangjie Trigo, Mariano Heinz, Tony F. Li, Ju Nelson, Keith A. Baldini, Edoardo Zhou, Jian Ghimire, Shambhu Reis, David A. Lindenberg, Aaron M. Optics Materials Science Important advances have recently been made in the search for materials with complex multi-phase landscapes that host photoinduced metastable collective states with exotic functionalities. In almost all cases so far, the desired phases are accessed by exploiting light-matter interactions via the imaginary part of the dielectric function through above-bandgap or resonant mode excitation. Nonresonant Raman excitation of coherent modes has been experimentally observed and proposed for dynamic material control, but the resulting atomic excursion has been limited to perturbative levels. Here, this challenge is overcome by employing nonresonant ultrashort pulses with low photon energies well below the bandgap. Using mid-infrared pulses, ferroelectric reversal is induced in lithium niobate, and the large-amplitude mode displacements are characterized through femtosecond stimulated Raman scattering and second harmonic generation. This approach, validated by first-principle calculations, defines a novel method for synthesizing hidden phases with unique functional properties and manipulating complex energy landscapes at reduced energy consumption and ultrafast speeds. |
| title | Nonresonant Raman control of ferroelectric polarization |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2411.10131 |