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Spectral phase measurement of a Fano resonance using tunable attosecond pulses
Electron dynamics induced by resonant absorption of light is of fundamental importance in nature and has been the subject of countless studies in many scientific areas. Above the ionization threshold of atomic or molecular systems, the presence of discrete states leads to autoionization, which is an...
Autores principales: | , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4759632/ https://www.ncbi.nlm.nih.gov/pubmed/26887682 http://dx.doi.org/10.1038/ncomms10566 |
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author | Kotur, M. Guénot, D. Jiménez-Galán, Á Kroon, D. Larsen, E. W. Louisy, M. Bengtsson, S. Miranda, M. Mauritsson, J. Arnold, C. L. Canton, S. E. Gisselbrecht, M. Carette, T. Dahlström, J. M. Lindroth, E. Maquet, A. Argenti, L. Martín, F. L'Huillier, A. |
author_facet | Kotur, M. Guénot, D. Jiménez-Galán, Á Kroon, D. Larsen, E. W. Louisy, M. Bengtsson, S. Miranda, M. Mauritsson, J. Arnold, C. L. Canton, S. E. Gisselbrecht, M. Carette, T. Dahlström, J. M. Lindroth, E. Maquet, A. Argenti, L. Martín, F. L'Huillier, A. |
author_sort | Kotur, M. |
collection | PubMed |
description | Electron dynamics induced by resonant absorption of light is of fundamental importance in nature and has been the subject of countless studies in many scientific areas. Above the ionization threshold of atomic or molecular systems, the presence of discrete states leads to autoionization, which is an interference between two quantum paths: direct ionization and excitation of the discrete state coupled to the continuum. Traditionally studied with synchrotron radiation, the probability for autoionization exhibits a universal Fano intensity profile as a function of excitation energy. However, without additional phase information, the full temporal dynamics cannot be recovered. Here we use tunable attosecond pulses combined with weak infrared radiation in an interferometric setup to measure not only the intensity but also the phase variation of the photoionization amplitude across an autoionization resonance in argon. The phase variation can be used as a fingerprint of the interactions between the discrete state and the ionization continua, indicating a new route towards monitoring electron correlations in time. |
format | Online Article Text |
id | pubmed-4759632 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47596322016-03-04 Spectral phase measurement of a Fano resonance using tunable attosecond pulses Kotur, M. Guénot, D. Jiménez-Galán, Á Kroon, D. Larsen, E. W. Louisy, M. Bengtsson, S. Miranda, M. Mauritsson, J. Arnold, C. L. Canton, S. E. Gisselbrecht, M. Carette, T. Dahlström, J. M. Lindroth, E. Maquet, A. Argenti, L. Martín, F. L'Huillier, A. Nat Commun Article Electron dynamics induced by resonant absorption of light is of fundamental importance in nature and has been the subject of countless studies in many scientific areas. Above the ionization threshold of atomic or molecular systems, the presence of discrete states leads to autoionization, which is an interference between two quantum paths: direct ionization and excitation of the discrete state coupled to the continuum. Traditionally studied with synchrotron radiation, the probability for autoionization exhibits a universal Fano intensity profile as a function of excitation energy. However, without additional phase information, the full temporal dynamics cannot be recovered. Here we use tunable attosecond pulses combined with weak infrared radiation in an interferometric setup to measure not only the intensity but also the phase variation of the photoionization amplitude across an autoionization resonance in argon. The phase variation can be used as a fingerprint of the interactions between the discrete state and the ionization continua, indicating a new route towards monitoring electron correlations in time. Nature Publishing Group 2016-02-18 /pmc/articles/PMC4759632/ /pubmed/26887682 http://dx.doi.org/10.1038/ncomms10566 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Kotur, M. Guénot, D. Jiménez-Galán, Á Kroon, D. Larsen, E. W. Louisy, M. Bengtsson, S. Miranda, M. Mauritsson, J. Arnold, C. L. Canton, S. E. Gisselbrecht, M. Carette, T. Dahlström, J. M. Lindroth, E. Maquet, A. Argenti, L. Martín, F. L'Huillier, A. Spectral phase measurement of a Fano resonance using tunable attosecond pulses |
title | Spectral phase measurement of a Fano resonance using tunable attosecond pulses |
title_full | Spectral phase measurement of a Fano resonance using tunable attosecond pulses |
title_fullStr | Spectral phase measurement of a Fano resonance using tunable attosecond pulses |
title_full_unstemmed | Spectral phase measurement of a Fano resonance using tunable attosecond pulses |
title_short | Spectral phase measurement of a Fano resonance using tunable attosecond pulses |
title_sort | spectral phase measurement of a fano resonance using tunable attosecond pulses |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4759632/ https://www.ncbi.nlm.nih.gov/pubmed/26887682 http://dx.doi.org/10.1038/ncomms10566 |
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