Simultaneous guidance of slow photons and slow acoustic phonons in silicon phoxonic crystal slabs
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2025
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| _version_ | 1866901052034383872 |
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| author | Escalante Fernande, Jose Maria |
| author_facet | Escalante Fernande, Jose Maria |
| contents | <p>We demonstrate theoretically that photons and acoustic phonons<br>can be simultaneously guided and slowed down in specially designed nanos-<br>tructures. Phoxonic crystal waveguides presenting simultaneous phononic<br>and photonic band gaps were designed in perforated silicon membranes<br>that can be conveniently obtained using silicon-on-insulator technology.<br>Geometrical parameters for simultaneous photonic and phononic band gaps<br>were first chosen for optical wavelengths around 1550 nm, based on the<br>finite element analysis of a perfect phoxonic crystal of circular holes. A<br>plain core waveguide was then defined, and simultaneous slow light and<br>elastic guided modes were identified for some waveguide width. Joint<br>guidance of light and elastic waves is predicted with group velocities as low<br>as c/25 and 180 m/s, respectively.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_14764048 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Simultaneous guidance of slow photons and slow acoustic phonons in silicon phoxonic crystal slabs Escalante Fernande, Jose Maria phoxonic crystas photonic crystals phononic crystals slow wave waveguide <p>We demonstrate theoretically that photons and acoustic phonons<br>can be simultaneously guided and slowed down in specially designed nanos-<br>tructures. Phoxonic crystal waveguides presenting simultaneous phononic<br>and photonic band gaps were designed in perforated silicon membranes<br>that can be conveniently obtained using silicon-on-insulator technology.<br>Geometrical parameters for simultaneous photonic and phononic band gaps<br>were first chosen for optical wavelengths around 1550 nm, based on the<br>finite element analysis of a perfect phoxonic crystal of circular holes. A<br>plain core waveguide was then defined, and simultaneous slow light and<br>elastic guided modes were identified for some waveguide width. Joint<br>guidance of light and elastic waves is predicted with group velocities as low<br>as c/25 and 180 m/s, respectively.</p> |
| title | Simultaneous guidance of slow photons and slow acoustic phonons in silicon phoxonic crystal slabs |
| topic | phoxonic crystas photonic crystals phononic crystals slow wave waveguide |
| url | https://doi.org/10.5281/zenodo.14764048 |