Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution
High harmonic generation of ultrafast laser pulses can be used to perform angle-resolved photoemission spectroscopy (ARPES) to map the electronic band structure of materials with femtosecond time resolution. However, currently it is difficult to reach high momenta with narrow energy resolution. Here...
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2020
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| Online Access: | https://hdl.handle.net/1721.1/124569 |
| _version_ | 1811074000437116928 |
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| author | Sie, Edbert J. Rohwer, Timm Lee, Changmin Gedik, Nuh |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sie, Edbert J. Rohwer, Timm Lee, Changmin Gedik, Nuh |
| author_sort | Sie, Edbert J. |
| collection | MIT |
| description | High harmonic generation of ultrafast laser pulses can be used to perform angle-resolved photoemission spectroscopy (ARPES) to map the electronic band structure of materials with femtosecond time resolution. However, currently it is difficult to reach high momenta with narrow energy resolution. Here, we combine a gas phase extreme ultraviolet (XUV) femtosecond light source, an XUV monochromator, and a time-of-flight electron analyzer to develop XUV-based time-resolved ARPES. Our technique can produce tunable photon energy between 24–33 eV with an unprecedented energy resolution of 30 meV and time resolution of 200 fs. This technique enables time-, energy- and momentum-resolved investigation of the nonequilibrium dynamics of electrons in materials with a full access to their first Brillouin zone. We evaluate the performance of this setup through exemplary measurements on various quantum materials, including WTe2, WSe2, TiSe2, and Bi2Sr2CaCu2O8+δ. |
| first_indexed | 2024-09-23T09:41:30Z |
| format | Article |
| id | mit-1721.1/124569 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:41:30Z |
| publishDate | 2020 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1245692022-09-26T13:10:30Z Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution Sie, Edbert J. Rohwer, Timm Lee, Changmin Gedik, Nuh Massachusetts Institute of Technology. Department of Physics General Biochemistry, Genetics and Molecular Biology General Physics and Astronomy General Chemistry High harmonic generation of ultrafast laser pulses can be used to perform angle-resolved photoemission spectroscopy (ARPES) to map the electronic band structure of materials with femtosecond time resolution. However, currently it is difficult to reach high momenta with narrow energy resolution. Here, we combine a gas phase extreme ultraviolet (XUV) femtosecond light source, an XUV monochromator, and a time-of-flight electron analyzer to develop XUV-based time-resolved ARPES. Our technique can produce tunable photon energy between 24–33 eV with an unprecedented energy resolution of 30 meV and time resolution of 200 fs. This technique enables time-, energy- and momentum-resolved investigation of the nonequilibrium dynamics of electrons in materials with a full access to their first Brillouin zone. We evaluate the performance of this setup through exemplary measurements on various quantum materials, including WTe2, WSe2, TiSe2, and Bi2Sr2CaCu2O8+δ. Gordon and Betty Moore Foundation. Emergent Phenomena in Quantum Systems (EpiQS) initiative (Grant GBMF4540) 2020-04-13T17:52:59Z 2020-04-13T17:52:59Z 2019-08-06 2020-02-06T15:12:42Z Article http://purl.org/eprint/type/JournalArticle 2041-1723 https://hdl.handle.net/1721.1/124569 Sie, Edbert J. et al. "Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution." Nature communications 10 (2019): 3535 © 2019 The Author(s) en 10.1038/s41467-019-11492-3 Nature communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | General Biochemistry, Genetics and Molecular Biology General Physics and Astronomy General Chemistry Sie, Edbert J. Rohwer, Timm Lee, Changmin Gedik, Nuh Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution |
| title | Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution |
| title_full | Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution |
| title_fullStr | Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution |
| title_full_unstemmed | Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution |
| title_short | Time-resolved XUV ARPES with tunable 24–33 eV laser pulses at 30 meV resolution |
| title_sort | time resolved xuv arpes with tunable 24 33 ev laser pulses at 30 mev resolution |
| topic | General Biochemistry, Genetics and Molecular Biology General Physics and Astronomy General Chemistry |
| url | https://hdl.handle.net/1721.1/124569 |
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