Widely tunable two-color x-ray free-electron laser pulses
We demonstrate the generation of widely tunable two-color x-ray free-electron laser (FEL) pulses at SwissFEL. In a split-undulator configuration, each color is produced in a different undulator section, and a chicane between the two sections allows for a variable time separation between the two puls...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-05-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.L022025 |
| _version_ | 1827285529203310592 |
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| author | Eduard Prat Philipp Dijkstal Eugenio Ferrari Romain Ganter Pavle Juranić Alexander Malyzhenkov Sven Reiche Thomas Schietinger Guanglei Wang Andre Al Haddad Sven Augustin Christoph Bostedt Gregor Knopp Jonas Knurr Ana Sofia Morillo-Candas Zhibin Sun Kirsten Schnorr |
| author_facet | Eduard Prat Philipp Dijkstal Eugenio Ferrari Romain Ganter Pavle Juranić Alexander Malyzhenkov Sven Reiche Thomas Schietinger Guanglei Wang Andre Al Haddad Sven Augustin Christoph Bostedt Gregor Knopp Jonas Knurr Ana Sofia Morillo-Candas Zhibin Sun Kirsten Schnorr |
| author_sort | Eduard Prat |
| collection | DOAJ |
| description | We demonstrate the generation of widely tunable two-color x-ray free-electron laser (FEL) pulses at SwissFEL. In a split-undulator configuration, each color is produced in a different undulator section, and a chicane between the two sections allows for a variable time separation between the two pulses of up to 500 fs. We show an unprecedented photon energy ratio between the two colors of about three (350 and 915 eV), with each individual pulse having a peak power of a few gigawatts and a duration down to the femtosecond level. Moreover, we demonstrate the reduction of the required undulator length via the optical klystron mechanism and the time-resolved diagnostics of the FEL pulses utilizing the same beam setup as for the pulse generation. The unique combination of widely tunable energy and time separation of the two-color pulse pair offers opportunities to study ultrafast x-ray-induced energy transfer and relaxation processes in physics, chemistry, and biology. |
| first_indexed | 2024-04-24T10:15:14Z |
| format | Article |
| id | doaj.art-797c4143a3594889b18dd25ab92e7636 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:15:14Z |
| publishDate | 2022-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-797c4143a3594889b18dd25ab92e76362024-04-12T17:20:29ZengAmerican Physical SocietyPhysical Review Research2643-15642022-05-0142L02202510.1103/PhysRevResearch.4.L022025Widely tunable two-color x-ray free-electron laser pulsesEduard PratPhilipp DijkstalEugenio FerrariRomain GanterPavle JuranićAlexander MalyzhenkovSven ReicheThomas SchietingerGuanglei WangAndre Al HaddadSven AugustinChristoph BostedtGregor KnoppJonas KnurrAna Sofia Morillo-CandasZhibin SunKirsten SchnorrWe demonstrate the generation of widely tunable two-color x-ray free-electron laser (FEL) pulses at SwissFEL. In a split-undulator configuration, each color is produced in a different undulator section, and a chicane between the two sections allows for a variable time separation between the two pulses of up to 500 fs. We show an unprecedented photon energy ratio between the two colors of about three (350 and 915 eV), with each individual pulse having a peak power of a few gigawatts and a duration down to the femtosecond level. Moreover, we demonstrate the reduction of the required undulator length via the optical klystron mechanism and the time-resolved diagnostics of the FEL pulses utilizing the same beam setup as for the pulse generation. The unique combination of widely tunable energy and time separation of the two-color pulse pair offers opportunities to study ultrafast x-ray-induced energy transfer and relaxation processes in physics, chemistry, and biology.http://doi.org/10.1103/PhysRevResearch.4.L022025 |
| spellingShingle | Eduard Prat Philipp Dijkstal Eugenio Ferrari Romain Ganter Pavle Juranić Alexander Malyzhenkov Sven Reiche Thomas Schietinger Guanglei Wang Andre Al Haddad Sven Augustin Christoph Bostedt Gregor Knopp Jonas Knurr Ana Sofia Morillo-Candas Zhibin Sun Kirsten Schnorr Widely tunable two-color x-ray free-electron laser pulses Physical Review Research |
| title | Widely tunable two-color x-ray free-electron laser pulses |
| title_full | Widely tunable two-color x-ray free-electron laser pulses |
| title_fullStr | Widely tunable two-color x-ray free-electron laser pulses |
| title_full_unstemmed | Widely tunable two-color x-ray free-electron laser pulses |
| title_short | Widely tunable two-color x-ray free-electron laser pulses |
| title_sort | widely tunable two color x ray free electron laser pulses |
| url | http://doi.org/10.1103/PhysRevResearch.4.L022025 |
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