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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.20337 |
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| _version_ | 1866911404180635648 |
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| author | Aknin, H. Klein, Y. Shwartz, S. |
| author_facet | Aknin, H. Klein, Y. Shwartz, S. |
| contents | We propose controlling the angular and spectral distribution of hard x-ray emission by entangling x-ray photons with ultraviolet surface plasmon polaritons (SPPs) whose dispersion is engineered by a metal-dielectric multilayer on a nonlinear crystal. Spontaneous parametric down-conversion of an x-ray pump produces a hard x-ray signal photon correlated with an ultraviolet SPP mode near its resonance. Engineering the SPPs dispersion reshapes the phase-matching landscape and imprints tunable angular-spectral structure on the emitted x-ray photons. The scheme enables compact, designable control of x-ray emission and extends surface-plasmon-assisted nonlinear and quantum x-ray optics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_20337 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Controlling X-ray emission with dispersion-engineered surface plasmon polaritons Aknin, H. Klein, Y. Shwartz, S. Optics We propose controlling the angular and spectral distribution of hard x-ray emission by entangling x-ray photons with ultraviolet surface plasmon polaritons (SPPs) whose dispersion is engineered by a metal-dielectric multilayer on a nonlinear crystal. Spontaneous parametric down-conversion of an x-ray pump produces a hard x-ray signal photon correlated with an ultraviolet SPP mode near its resonance. Engineering the SPPs dispersion reshapes the phase-matching landscape and imprints tunable angular-spectral structure on the emitted x-ray photons. The scheme enables compact, designable control of x-ray emission and extends surface-plasmon-assisted nonlinear and quantum x-ray optics. |
| title | Controlling X-ray emission with dispersion-engineered surface plasmon polaritons |
| topic | Optics |
| url | https://arxiv.org/abs/2601.20337 |