Chip-scale sub-Doppler atomic spectroscopy enabled by a metasurface integrated photonic emitter
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914953178382336 |
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| author | Yulaev, Alexander Ropp, Chad Kitching, John Aksyuk, Vladimir A. Hummon, Matthew T. |
| author_facet | Yulaev, Alexander Ropp, Chad Kitching, John Aksyuk, Vladimir A. Hummon, Matthew T. |
| contents | We demonstrate chip-scale sub-Doppler spectroscopy in an integrated and fiber-coupled photonic-metasurface device. The device is a stack of three planar components: a photonic mode expanding grating emitter circuit with a monolithically integrated tilt compensating dielectric metasurface, a microfabricated atomic vapor cell and a mirror. The metasurface photonic circuit efficiently emits a 130 micrometer-wide $1/e^2$ diameter) collimated surface-normal beam with only -6.3 dB loss and couples the reflected beam back into the connecting fiber, requiring no alignment between the stacked components. We develop a simple model based on light propagation through the photonic device to interpret the atomic spectroscopy signals and explain spectral features covering the full Rb hyperfine state manifold. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_07672 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Chip-scale sub-Doppler atomic spectroscopy enabled by a metasurface integrated photonic emitter Yulaev, Alexander Ropp, Chad Kitching, John Aksyuk, Vladimir A. Hummon, Matthew T. Optics Applied Physics Atomic Physics We demonstrate chip-scale sub-Doppler spectroscopy in an integrated and fiber-coupled photonic-metasurface device. The device is a stack of three planar components: a photonic mode expanding grating emitter circuit with a monolithically integrated tilt compensating dielectric metasurface, a microfabricated atomic vapor cell and a mirror. The metasurface photonic circuit efficiently emits a 130 micrometer-wide $1/e^2$ diameter) collimated surface-normal beam with only -6.3 dB loss and couples the reflected beam back into the connecting fiber, requiring no alignment between the stacked components. We develop a simple model based on light propagation through the photonic device to interpret the atomic spectroscopy signals and explain spectral features covering the full Rb hyperfine state manifold. |
| title | Chip-scale sub-Doppler atomic spectroscopy enabled by a metasurface integrated photonic emitter |
| topic | Optics Applied Physics Atomic Physics |
| url | https://arxiv.org/abs/2406.07672 |