Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas
Relativistic laser plasmas have been shown to provide a robust platform for the generation of bright attosecond pulses via the relativistically oscillating mirror and coherent wake emission mechanisms. Theoretical work, however, has shown an alternative method for achieving this goal: dense nanobunc...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/1/015025 |
| _version_ | 1797751777489059840 |
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| author | B Dromey S Cousens S Rykovanov M Yeung D Jung D C Gautier T Dzelzainis D Kiefer S Palaniyppan R Shah J Schreiber J C Fernandez C L S Lewis M Zepf B M Hegelich |
| author_facet | B Dromey S Cousens S Rykovanov M Yeung D Jung D C Gautier T Dzelzainis D Kiefer S Palaniyppan R Shah J Schreiber J C Fernandez C L S Lewis M Zepf B M Hegelich |
| author_sort | B Dromey |
| collection | DOAJ |
| description | Relativistic laser plasmas have been shown to provide a robust platform for the generation of bright attosecond pulses via the relativistically oscillating mirror and coherent wake emission mechanisms. Theoretical work, however, has shown an alternative method for achieving this goal: dense nanobunch formation and acceleration on timescales of less than an optical laser cycle (∼10 ^−15 s) during relativistic laser–plasma interactions. This opens up the exciting potential for developing a new bright ultrafast extreme ultraviolet XUV/x-ray source. Here we demonstrate, using a previously unexplored geometry, coherent synchrotron emission generated during relativistically intense laser–ultrathin foil interactions which extends to ∼1 keV photon energies. Particle-in-cell code simulations reveal how periodic sub-laser cycle acceleration of dense nanobunches of electrons formed during normal incidence interactions result in bursts of bright attosecond radiation in transmission and how these pulses relate to plasma density scalelength. This work shows clear potential for a novel, intense source of attosecond XUV (∼10 ^−18 s) radiation. Experimentally, high order ( n ) harmonic spectra ( I ( n )) are characterized by a slow decay ( n ^−1.62 ) before a rapid efficiency rollover. Such a microscopic coherent synchrotron source (<5 × 10 ^−6 m) has the potential to significantly increase XUV pulse brightness significantly over current sources. |
| first_indexed | 2024-03-12T16:53:31Z |
| format | Article |
| id | doaj.art-4ce1bbd512f249fa879ab13829517729 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:53:31Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-4ce1bbd512f249fa879ab138295177292023-08-08T11:03:49ZengIOP PublishingNew Journal of Physics1367-26302013-01-0115101502510.1088/1367-2630/15/1/015025Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmasB Dromey0S Cousens1S Rykovanov2M Yeung3D Jung4D C Gautier5T Dzelzainis6D Kiefer7S Palaniyppan8R Shah9J Schreiber10J C Fernandez11C L S Lewis12M Zepf13B M Hegelich14Department of Physics and Astronomy, Centre for Plasma Physics, Queens University Belfast , Belfast BT7 1NN, UKDepartment of Physics and Astronomy, Centre for Plasma Physics, Queens University Belfast , Belfast BT7 1NN, UKDepartment für Physik, Ludwig-Maximilians-Universität , Am Coulombwall 1, D-85748 Garching, GermanyDepartment of Physics and Astronomy, Centre for Plasma Physics, Queens University Belfast , Belfast BT7 1NN, UKMax-Planck-Institut für Quantenoptik , Hans-Kopfermann- Strasse 1, D-85748 Garching, Germany; Los Alamos National Laboratory , Los Alamos, NM 87545, USALos Alamos National Laboratory , Los Alamos, NM 87545, USADepartment of Physics and Astronomy, Centre for Plasma Physics, Queens University Belfast , Belfast BT7 1NN, UKDepartment für Physik, Ludwig-Maximilians-Universität , Am Coulombwall 1, D-85748 Garching, Germany; Max-Planck-Institut für Quantenoptik , Hans-Kopfermann- Strasse 1, D-85748 Garching, GermanyLos Alamos National Laboratory , Los Alamos, NM 87545, USALos Alamos National Laboratory , Los Alamos, NM 87545, USADepartment für Physik, Ludwig-Maximilians-Universität , Am Coulombwall 1, D-85748 Garching, Germany; Max-Planck-Institut für Quantenoptik , Hans-Kopfermann- Strasse 1, D-85748 Garching, GermanyLos Alamos National Laboratory , Los Alamos, NM 87545, USADepartment of Physics and Astronomy, Centre for Plasma Physics, Queens University Belfast , Belfast BT7 1NN, UKDepartment of Physics and Astronomy, Centre for Plasma Physics, Queens University Belfast , Belfast BT7 1NN, UKMax-Planck-Institut für Quantenoptik , Hans-Kopfermann- Strasse 1, D-85748 Garching, Germany; Los Alamos National Laboratory , Los Alamos, NM 87545, USARelativistic laser plasmas have been shown to provide a robust platform for the generation of bright attosecond pulses via the relativistically oscillating mirror and coherent wake emission mechanisms. Theoretical work, however, has shown an alternative method for achieving this goal: dense nanobunch formation and acceleration on timescales of less than an optical laser cycle (∼10 ^−15 s) during relativistic laser–plasma interactions. This opens up the exciting potential for developing a new bright ultrafast extreme ultraviolet XUV/x-ray source. Here we demonstrate, using a previously unexplored geometry, coherent synchrotron emission generated during relativistically intense laser–ultrathin foil interactions which extends to ∼1 keV photon energies. Particle-in-cell code simulations reveal how periodic sub-laser cycle acceleration of dense nanobunches of electrons formed during normal incidence interactions result in bursts of bright attosecond radiation in transmission and how these pulses relate to plasma density scalelength. This work shows clear potential for a novel, intense source of attosecond XUV (∼10 ^−18 s) radiation. Experimentally, high order ( n ) harmonic spectra ( I ( n )) are characterized by a slow decay ( n ^−1.62 ) before a rapid efficiency rollover. Such a microscopic coherent synchrotron source (<5 × 10 ^−6 m) has the potential to significantly increase XUV pulse brightness significantly over current sources.https://doi.org/10.1088/1367-2630/15/1/015025 |
| spellingShingle | B Dromey S Cousens S Rykovanov M Yeung D Jung D C Gautier T Dzelzainis D Kiefer S Palaniyppan R Shah J Schreiber J C Fernandez C L S Lewis M Zepf B M Hegelich Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas New Journal of Physics |
| title | Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas |
| title_full | Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas |
| title_fullStr | Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas |
| title_full_unstemmed | Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas |
| title_short | Coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas |
| title_sort | coherent synchrotron emission in transmission from ultrathin relativistic laser plasmas |
| url | https://doi.org/10.1088/1367-2630/15/1/015025 |
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