Anisotropy Parameters for Two-Color Photoionization Phases in Randomly Oriented Molecules : Theory and Experiment in Methane and Deuteromethane
(2024) In Journal of Physical Chemistry A 128(9). p.1685-1697- Abstract
We present combined theoretical and experimental work investigating the angle-resolved phases of the photoionization process driven by a two-color field consisting of an attosecond pulse train and an infrared pulse in an ensemble of randomly oriented molecules. We derive a general form for the two-color photoelectron (and time-delay) angular distribution valid also in the case of chiral molecules and when relative polarizations of the photons contributing to the attosecond photoelectron interferometer differ. We show a comparison between the experimental data and theoretical predictions in an ensemble of methane and deuteromethane molecules, discussing the effect of nuclear dynamics on the photoionization phases. Finally, we demonstrate... (More)
We present combined theoretical and experimental work investigating the angle-resolved phases of the photoionization process driven by a two-color field consisting of an attosecond pulse train and an infrared pulse in an ensemble of randomly oriented molecules. We derive a general form for the two-color photoelectron (and time-delay) angular distribution valid also in the case of chiral molecules and when relative polarizations of the photons contributing to the attosecond photoelectron interferometer differ. We show a comparison between the experimental data and theoretical predictions in an ensemble of methane and deuteromethane molecules, discussing the effect of nuclear dynamics on the photoionization phases. Finally, we demonstrate that the oscillating component and the phase of the two-color signal can be fitted by using complex asymmetry parameters, in perfect analogy to the atomic case.
(Less)
- author
- organization
- publishing date
- 2024-03
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physical Chemistry A
- volume
- 128
- issue
- 9
- pages
- 13 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:38394372
- scopus:85186220927
- ISSN
- 1089-5639
- DOI
- 10.1021/acs.jpca.3c06759
- project
- Electronic coherence and correlation in attosecond photoionization dynamics
- language
- English
- LU publication?
- yes
- id
- 237f23c3-0dda-4c6a-b3c9-7856d626d0a9
- date added to LUP
- 2024-03-19 15:48:38
- date last changed
- 2024-04-16 14:26:20
@article{237f23c3-0dda-4c6a-b3c9-7856d626d0a9, abstract = {{<p>We present combined theoretical and experimental work investigating the angle-resolved phases of the photoionization process driven by a two-color field consisting of an attosecond pulse train and an infrared pulse in an ensemble of randomly oriented molecules. We derive a general form for the two-color photoelectron (and time-delay) angular distribution valid also in the case of chiral molecules and when relative polarizations of the photons contributing to the attosecond photoelectron interferometer differ. We show a comparison between the experimental data and theoretical predictions in an ensemble of methane and deuteromethane molecules, discussing the effect of nuclear dynamics on the photoionization phases. Finally, we demonstrate that the oscillating component and the phase of the two-color signal can be fitted by using complex asymmetry parameters, in perfect analogy to the atomic case.</p>}}, author = {{Ertel, Dominik and Busto, David and Makos, Ioannis and Schmoll, Marvin and Benda, Jakub and Bragheri, Francesca and Osellame, Roberto and Lindroth, Eva and Patchkovskii, Serguei and Mašín, Zdeněk and Sansone, Giuseppe}}, issn = {{1089-5639}}, language = {{eng}}, number = {{9}}, pages = {{1685--1697}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of Physical Chemistry A}}, title = {{Anisotropy Parameters for Two-Color Photoionization Phases in Randomly Oriented Molecules : Theory and Experiment in Methane and Deuteromethane}}, url = {{http://dx.doi.org/10.1021/acs.jpca.3c06759}}, doi = {{10.1021/acs.jpca.3c06759}}, volume = {{128}}, year = {{2024}}, }