Collective nuclear excitation and pulse propagation in single-mode x-ray waveguides
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arXiv
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| Hauptverfasser: | , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| author | Lohse, Leon M. Andrejić, Petar Velten, Sven Vassholz, Malte Neuhaus, Charlotte Negi, Ankita Panchwanee, Anjali Sergeev, Ilya Pálffy, Adriana Salditt, Tim Röhlsberger, Ralf |
| author_facet | Lohse, Leon M. Andrejić, Petar Velten, Sven Vassholz, Malte Neuhaus, Charlotte Negi, Ankita Panchwanee, Anjali Sergeev, Ilya Pálffy, Adriana Salditt, Tim Röhlsberger, Ralf |
| contents | Waveguides offer a means to controllably couple atomic ensembles to the electromagnetic field therein. Here, we demonstrate x-ray propagation in planar thin-film waveguides coupled to Mössbauer nuclei under collective resonant excitation by short pulses of synchrotron radiation. We record x-ray photons that have been emitted into resonant modes of the waveguide. Depending on the geometry and mode of excitation, two fundamentally different signatures of the collective emission are observed, for which we present a unifying theoretical model. Our results form a new platform for waveguide quantum electrodynamics in the hard x-ray regime with the potential to provide a coherent narrowband source of x-rays on the nanometer scale. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_06508 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Collective nuclear excitation and pulse propagation in single-mode x-ray waveguides Lohse, Leon M. Andrejić, Petar Velten, Sven Vassholz, Malte Neuhaus, Charlotte Negi, Ankita Panchwanee, Anjali Sergeev, Ilya Pálffy, Adriana Salditt, Tim Röhlsberger, Ralf Quantum Physics Accelerator Physics Optics Waveguides offer a means to controllably couple atomic ensembles to the electromagnetic field therein. Here, we demonstrate x-ray propagation in planar thin-film waveguides coupled to Mössbauer nuclei under collective resonant excitation by short pulses of synchrotron radiation. We record x-ray photons that have been emitted into resonant modes of the waveguide. Depending on the geometry and mode of excitation, two fundamentally different signatures of the collective emission are observed, for which we present a unifying theoretical model. Our results form a new platform for waveguide quantum electrodynamics in the hard x-ray regime with the potential to provide a coherent narrowband source of x-rays on the nanometer scale. |
| title | Collective nuclear excitation and pulse propagation in single-mode x-ray waveguides |
| topic | Quantum Physics Accelerator Physics Optics |
| url | https://arxiv.org/abs/2403.06508 |