Probing electronic decoherence with high-resolution attosecond photoelectron interferometry

SND-ID: 2022-53

Creator/Principal investigator(s)

David Busto - Lund University, Department of Physics orcid

Shiyang Zhong - Lund University, Department of physics orcid

Cord Arnold - Lund University, Department of Physics orcid

Mathieu Gisselbrecht - Lund University, Physics Department orcid

Anne L'Huillier - Lund University, Department of Physics orcid

Description

We investigate the photoionization of helium atoms by attosecond pulse trains generated via high-order harmonic generation in neon gas. In the frequency domain these attosecond pulse trains correspond to a comb of odd harmonics. The wavelength of the infrared field used for high harmonic generation is chosen so that the 39th harmonic is resonant with the 2s2p resonance in helium situated at 60.147 eV. The attosecond pulse trains are overlapped spatially and temporally with a delayed infrared probe pulse with 10 nm bandwidth and a central wavelength of 800nm. Both pulses are focused on an effusive helium gas jet using a toroidal mirror. The resulting photoelectron spectrum is measured using a 2-meter long magnetic bottle electron spectrometer. The experiments consist in measuring the photoelectron spectrum as a function of the delay between the attosecond pulse train and the infrared probe pulse.

The photoelectron spectra exhibit small photoelectron peaks (sidebands) originating from the interference of two photon transitions. These peaks oscillate as a function of the delay between the atto

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Language

English

Research principal, contributors, and funding

Research principal

Lund University

Responsible department/unit

Lund University, Department of Physics

Funding 1

  • Funding agency: Knut and Alice Wallenberg Foundation rorId
  • Funding agency's reference number: 2017.0104

Funding 2

  • Funding agency: European Research Council rorId
  • Funding agency's reference number: 339253

Funding 3

  • Funding agency: Swedish Research Council rorId
  • Funding agency's reference number: 2013-8185
Protection and ethical review

Data contains personal data

No

Method and time period
Geographic coverage
Publications

Busto et al., Probing electronic decoherence with high-resolution attosecond photoelectron interferometry, arXiv:2111.12037

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Dataset
Probing electronic decoherence with high-resolution attosecond photoelectron interferometry

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delay.txt (658 bytes)
TOF.txt (78.14 KB)
spectrogram.txt (452.96 KB)

Associated documentation

Description

The data is acquired using a 2m-long magnetic bottle electron spectrometer. An acceleration voltage of 2V is applied on the permanent magnet and the gas needle and a retarding potential of 34V is applied at the entrance of the flight tube. The design of the MBES is based on the following publication: J. H. Eland et al., Phys. Rev. Lett. 90, 053003 (2003).

The experiments consist in measuring time-of-flight spectra as a function of the delay between the attosecond pulse train and the IR probe f

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Version 1

Citation

David Busto, Shiyang Zhong, Cord Arnold, Mathieu Gisselbrecht, Anne L'Huillier. Lund University, Department of Physics (2022). Probing electronic decoherence with high-resolution attosecond photoelectron interferometry. Swedish National Data Service. Version 1. https://doi.org/10.5878/mtfm-b338

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Data format / data structure

Numeric

Creator/Principal investigator(s)

David Busto - Lund University, Department of Physics orcid

Shiyang Zhong - Lund University, Department of physics orcid

Cord Arnold - Lund University, Department of Physics orcid

Mathieu Gisselbrecht - Lund University, Physics Department orcid

Anne L'Huillier - Lund University, Department of Physics orcid

License

Creative Commons  Attribution 4.0 International (CC BY 4.0)
Published: 2022-03-25