An optically defined phononic crystal defect
Fuente:
arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866910507289542656 |
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| author | Clark, Thomas J. Bernard, Simon Ma, Jiaxing Dumont, Vincent Sankey, Jack C. |
| author_facet | Clark, Thomas J. Bernard, Simon Ma, Jiaxing Dumont, Vincent Sankey, Jack C. |
| contents | We demonstrate a mechanical crystal with an optically programmable defect mode. By applying an optical spring to a single unit cell of a phononic crystal membrane, we smoothly transfer a single mechanical mode into the bandgap, thereby localizing its spatial profile from one spanning the entire crystal to one confined within a few unit cells. This localization is evidenced by an enhanced mechanical frequency shift commensurate with a 37-fold reduction in the mode's participating mass. Our results lay groundwork for a new class of optomechanical systems that control mechanical mode profile and participating mass. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_08510 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | An optically defined phononic crystal defect Clark, Thomas J. Bernard, Simon Ma, Jiaxing Dumont, Vincent Sankey, Jack C. Optics Mesoscale and Nanoscale Physics Quantum Physics We demonstrate a mechanical crystal with an optically programmable defect mode. By applying an optical spring to a single unit cell of a phononic crystal membrane, we smoothly transfer a single mechanical mode into the bandgap, thereby localizing its spatial profile from one spanning the entire crystal to one confined within a few unit cells. This localization is evidenced by an enhanced mechanical frequency shift commensurate with a 37-fold reduction in the mode's participating mass. Our results lay groundwork for a new class of optomechanical systems that control mechanical mode profile and participating mass. |
| title | An optically defined phononic crystal defect |
| topic | Optics Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2403.08510 |