X-ray parametric down-conversion reveals EUV-polariton
Abstract Spontaneous parametric down-conversion (PDC) of photons is a gateway into the quantum realm – thoroughly studied in nonlinear optics and ubiquitously used to generate non-classical states of light. Extending PDC from the visible regime towards shorter wavelengths further enables microscopic...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-06-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-60845-8 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849432665789300736 |
|---|---|
| author | Dietrich Krebs Fridtjof Kerker Xenia Brockmüller Christoph J. Sahle Blanka Detlefs Simo Huotari Nina Rohringer Christina Bömer |
| author_facet | Dietrich Krebs Fridtjof Kerker Xenia Brockmüller Christoph J. Sahle Blanka Detlefs Simo Huotari Nina Rohringer Christina Bömer |
| author_sort | Dietrich Krebs |
| collection | DOAJ |
| description | Abstract Spontaneous parametric down-conversion (PDC) of photons is a gateway into the quantum realm – thoroughly studied in nonlinear optics and ubiquitously used to generate non-classical states of light. Extending PDC from the visible regime towards shorter wavelengths further enables microscopic resolution of electronic structure and quantum-enhanced X-ray detection, but remained challenging due to the process’ inherently low conversion rate. Here, we resolve the full signal cone of non-degenerate down-conversion at X-ray wavelengths and identify imprints of a polariton in the extreme ultraviolet (EUV) regime. We confirm our finding of the EUV-polariton with theoretical simulations and establish that our approach directly images the characteristic anti-crossing of polaritonic dispersion branches. This insight could open a pathway to explore strong-coupling phenomena of EUV-light-matter interaction. |
| format | Article |
| id | doaj-art-8e201ed94edf4375a7546c64d2a0f442 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-8e201ed94edf4375a7546c64d2a0f4422025-08-20T03:27:18ZengNature PortfolioNature Communications2041-17232025-06-011611910.1038/s41467-025-60845-8X-ray parametric down-conversion reveals EUV-polaritonDietrich Krebs0Fridtjof Kerker1Xenia Brockmüller2Christoph J. Sahle3Blanka Detlefs4Simo Huotari5Nina Rohringer6Christina Bömer7Deutsches Elektronen-Synchrotron DESYThe Hamburg Centre for Ultrafast ImagingDepartment of Physics, Universität HamburgESRF, The European SynchrotronESRF, The European SynchrotronDepartment of Physics, University of HelsinkiDeutsches Elektronen-Synchrotron DESYDeutsches Elektronen-Synchrotron DESYAbstract Spontaneous parametric down-conversion (PDC) of photons is a gateway into the quantum realm – thoroughly studied in nonlinear optics and ubiquitously used to generate non-classical states of light. Extending PDC from the visible regime towards shorter wavelengths further enables microscopic resolution of electronic structure and quantum-enhanced X-ray detection, but remained challenging due to the process’ inherently low conversion rate. Here, we resolve the full signal cone of non-degenerate down-conversion at X-ray wavelengths and identify imprints of a polariton in the extreme ultraviolet (EUV) regime. We confirm our finding of the EUV-polariton with theoretical simulations and establish that our approach directly images the characteristic anti-crossing of polaritonic dispersion branches. This insight could open a pathway to explore strong-coupling phenomena of EUV-light-matter interaction.https://doi.org/10.1038/s41467-025-60845-8 |
| spellingShingle | Dietrich Krebs Fridtjof Kerker Xenia Brockmüller Christoph J. Sahle Blanka Detlefs Simo Huotari Nina Rohringer Christina Bömer X-ray parametric down-conversion reveals EUV-polariton Nature Communications |
| title | X-ray parametric down-conversion reveals EUV-polariton |
| title_full | X-ray parametric down-conversion reveals EUV-polariton |
| title_fullStr | X-ray parametric down-conversion reveals EUV-polariton |
| title_full_unstemmed | X-ray parametric down-conversion reveals EUV-polariton |
| title_short | X-ray parametric down-conversion reveals EUV-polariton |
| title_sort | x ray parametric down conversion reveals euv polariton |
| url | https://doi.org/10.1038/s41467-025-60845-8 |
| work_keys_str_mv | AT dietrichkrebs xrayparametricdownconversionrevealseuvpolariton AT fridtjofkerker xrayparametricdownconversionrevealseuvpolariton AT xeniabrockmuller xrayparametricdownconversionrevealseuvpolariton AT christophjsahle xrayparametricdownconversionrevealseuvpolariton AT blankadetlefs xrayparametricdownconversionrevealseuvpolariton AT simohuotari xrayparametricdownconversionrevealseuvpolariton AT ninarohringer xrayparametricdownconversionrevealseuvpolariton AT christinabomer xrayparametricdownconversionrevealseuvpolariton |