High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses
Performing time- and angle-resolved photoemission (tr-ARPES) spectroscopy at high momenta necessitates extreme ultraviolet laser pulses, which are typically produced via high harmonic generation (HHG). Despite recent advances, HHG-based setups still require large pulse energies (from hundreds of μJ...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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AIP Publishing
2020
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| Online Access: | https://hdl.handle.net/1721.1/128624 |
| _version_ | 1826192747506171904 |
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| author | Lee, Changmin Rohwer, Timm Sie, Edbert Jarvis Zhong, Alfred Baldini, Edoardo Gardner, Dillion R. Lee, Young S Gedik, Nuh |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Lee, Changmin Rohwer, Timm Sie, Edbert Jarvis Zhong, Alfred Baldini, Edoardo Gardner, Dillion R. Lee, Young S Gedik, Nuh |
| author_sort | Lee, Changmin |
| collection | MIT |
| description | Performing time- and angle-resolved photoemission (tr-ARPES) spectroscopy at high momenta necessitates extreme ultraviolet laser pulses, which are typically produced via high harmonic generation (HHG). Despite recent advances, HHG-based setups still require large pulse energies (from hundreds of μJ to mJ) and their energy resolution is limited to tens of meV. Here, we present a novel 11 eV tr-ARPES setup that generates a flux of 5 × 1010 photons/s and achieves an unprecedented energy resolution of 16 meV. It can be operated at high repetition rates (up to 250 kHz) while using input pulse energies down to 3 μJ. We demonstrate these unique capabilities by simultaneously capturing the energy and momentum resolved dynamics in two well-separated momentum space regions of a charge density wave material ErTe3. This novel setup offers the opportunity to study the non-equilibrium band structure of solids with exceptional energy and time resolutions at high repetition rates. |
| first_indexed | 2024-09-23T09:28:17Z |
| format | Article |
| id | mit-1721.1/128624 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:28:17Z |
| publishDate | 2020 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1286242022-09-30T14:38:10Z High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses Lee, Changmin Rohwer, Timm Sie, Edbert Jarvis Zhong, Alfred Baldini, Edoardo Gardner, Dillion R. Lee, Young S Gedik, Nuh Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Materials Research Laboratory Performing time- and angle-resolved photoemission (tr-ARPES) spectroscopy at high momenta necessitates extreme ultraviolet laser pulses, which are typically produced via high harmonic generation (HHG). Despite recent advances, HHG-based setups still require large pulse energies (from hundreds of μJ to mJ) and their energy resolution is limited to tens of meV. Here, we present a novel 11 eV tr-ARPES setup that generates a flux of 5 × 1010 photons/s and achieves an unprecedented energy resolution of 16 meV. It can be operated at high repetition rates (up to 250 kHz) while using input pulse energies down to 3 μJ. We demonstrate these unique capabilities by simultaneously capturing the energy and momentum resolved dynamics in two well-separated momentum space regions of a charge density wave material ErTe3. This novel setup offers the opportunity to study the non-equilibrium band structure of solids with exceptional energy and time resolutions at high repetition rates. Swiss National Science Foundation (Fellowships P2ELP2_172290 and P400P2_183842) United States. Department of Energy. Office of Basic Energy Sciences. Division of Materials Sciences and Engineering (Grant DE-FG02-08ER46521) United States. Army Research Office (Grant W911NF-15-1-0128) Gordon and Betty Moore Foundation (EPiQS Initiative (Grant GBMF4540)) United States. Department of Energy. Office of Basic Energy Science (Contract DE-AC02-76SF00515) 2020-11-24T17:25:22Z 2020-11-24T17:25:22Z 2020-04 2020-10-23T18:23:23Z Article http://purl.org/eprint/type/JournalArticle 0093-4119 https://hdl.handle.net/1721.1/128624 Lee, Changmin et al. “High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses.” Review of Scientific Instruments, 91, 4 (April 2020): 043102 © 2020 The Author(s) en 10.1063/1.5139556 Review of Scientific Instruments Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf AIP Publishing arXiv |
| spellingShingle | Lee, Changmin Rohwer, Timm Sie, Edbert Jarvis Zhong, Alfred Baldini, Edoardo Gardner, Dillion R. Lee, Young S Gedik, Nuh High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses |
| title | High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses |
| title_full | High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses |
| title_fullStr | High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses |
| title_full_unstemmed | High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses |
| title_short | High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses |
| title_sort | high resolution time and angle resolved photoemission spectroscopy with 11 ev laser pulses |
| url | https://hdl.handle.net/1721.1/128624 |
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