Controlling photoionization using attosecond time-slit interferences

SND-ID: snd1158-1. Version: 1.0. DOI: https://doi.org/10.5878/dc7g-n289

Citation

Creator/Principal investigator(s)

Sara Mikaelsson - Faculty of Engineering, LTH, Department of Physics

Research principal

Faculty of engineering, Lund University - Department of Physics

Description

We study photoemission, the process where electromagnetic radiation interacts with matter and leads to the emission of electrons. This process takes place on an incredibly short time scale, but with the aid of advanced laser technology we can study its dynamics and the quantum mechanical rules that govern it. Here, we study the photoionization of helium with a 3D momentum spectrometer.

A short train of pulses in the extreme ultraviolet spectral regime and with an attosecond time duration were focused together with a few-cycle near infrared laser pulse into a helium gas jet in a spectrometer. The spectrometer measures both the resulting photoions and photoelectrons after the ionization by the combined extreme ultraviolet and infrared light, and the complete three-dimensional momentum distribution can be reconstructed.

In this study the photoelectron distribution was studied while varying the carrier-to-envelope phase (CEP) of the infrared field. The CEP is the phase relation between the envelope of a light pulse and its carrier wave, and for few cycle pulses it significantly alters the shap

... Show more..
We study photoemission, the process where electromagnetic radiation interacts with matter and leads to the emission of electrons. This process takes place on an incredibly short time scale, but with the aid of advanced laser technology we can study its dynamics and the quantum mechanical rules that govern it. Here, we study the photoionization of helium with a 3D momentum spectrometer.

A short train of pulses in the extreme ultraviolet spectral regime and with an attosecond time duration were focused together with a few-cycle near infrared laser pulse into a helium gas jet in a spectrometer. The spectrometer measures both the resulting photoions and photoelectrons after the ionization by the combined extreme ultraviolet and infrared light, and the complete three-dimensional momentum distribution can be reconstructed.

In this study the photoelectron distribution was studied while varying the carrier-to-envelope phase (CEP) of the infrared field. The CEP is the phase relation between the envelope of a light pulse and its carrier wave, and for few cycle pulses it significantly alters the shape of the electric field. Since the attosecond extreme ultraviolet pulses are generated by non-linear up-conversion of the infrared pulse, changing the CEP also influences the number of extreme ultraviolet pulses generated, and the resulting photoelectron momentum distribution also shows great variation that depends on the CEP.

Data has been aquried with a 3D momentum spectrometer, recording position and time-of-flight of photo-electrons and photo-ions in coincidence. For more information about the operation of the spectrometer and methods for retriving momenta see:
M Gisselbrecht, A Huetz, M Lavollée, TJ Reddish, DP Seccombe, Optimization of momentum imaging systems using electric and magnetic fields. Rev. Sci. Instrum. 76, 013105 (2005).

Both measurements were been acquired with an extracting electric field of 84 V and corresponding magnetic field of 5.68 Gauss.

Each measurement consists of three files. The one called 'events' lists the events of the ion and electron detector in chronological order. NaN indicates no event was recorded. The file called 'ions' contains the time and position information of the recorded ions, with each row number corresponding to that recorded in the 'events' file. The file called 'electrons' contains the time and position information of the recorded electrons, with each row number corresponding to that recorded in the 'events' file. For both the 'ions' and 'electrons' file, column one and two contains the x and y information, while column three contains the time of flight in ns. Show less..

Data contains personal data

No

Language

Method and outcome

Data format / data structure

Data collection
Geographic coverage
Administrative information

Responsible department/unit

Department of Physics

Other research principals

Contributor(s)

Jan Vogelsang - Faculty of Engineering, LTH, Department of Physics orcid

Saikat Nandi - Faculty of Engineering, LTH, Department of Physics

Lisa Rämisch - Faculty of Engineering, LTH, Department of Physics orcid

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

Stefanos Carlström - Faculty of Engineering, LTH, Department of Physics orcid

... Show more..

Jan Vogelsang - Faculty of Engineering, LTH, Department of Physics orcid

Saikat Nandi - Faculty of Engineering, LTH, Department of Physics

Lisa Rämisch - Faculty of Engineering, LTH, Department of Physics orcid

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

Stefanos Carlström - Faculty of Engineering, LTH, Department of Physics orcid

Miguel Miranda - Faculty of Engineering, LTH, Department of Physics orcid

Chen Guo - Faculty of Engineering, LTH, Department of Physics

Anne Harth - Faculty of Engineering, LTH, Department of Physics

Show less..

Funding 1

  • Funding agency: Swedish Research Council rorId
  • Funding agency's reference number: 2013-08185
  • Project name on the application: Ansökan: Lunds attosekundvetenskapscentrum

Funding 2

  • Funding agency: European Research Council rorId
  • Funding agency's reference number: 339253
  • Project name on the application: Physics of Atoms with Attosecond Light Pulses

Funding 3

  • Funding agency: Knut and Alice Wallenberg Foundation rorId
Topic and keywords

Research area

Physical sciences (Standard för svensk indelning av forskningsämnen 2011)

Atom and molecular physics and optics (Standard för svensk indelning av forskningsämnen 2011)

Publications

Sort by name | Sort by year

Yu-Chen Cheng, Sara Mikaelsson, Saikat Nandi, Lisa Rämisch, Chen Guo, Stefanos Carlström, Anne Harth, Jan Vogelsang, Miguel Miranda, Cord L. Arnold, Anne L'Huillier, Mathieu Gisselbrecht. (2019). Controlling the Photoelectric Effect in the Time Domain. arXiv:1908.09508
DOI: https://doi.org/10.48550/arXiv.1908.09508

Cheng, Y. C., Mikaelsson, S., Nandi, S., Rämisch, L., Guo, C., Carlström, S., Harth, A., Vogelsang, J., Miranda, M., Arnold, C. L., L’Huillier, A., & Gisselbrecht, M. (2020). Controlling photoionization using attosecond time-slit interferences. In Proceedings of the National Academy of Sciences of the United States of America (Vol. 117, Issue 20, pp. 10727–10732).
DOI: https://doi.org/10.1073/pnas.1921138117

If you have published anything based on these data, please notify us with a reference to your publication(s). If you are responsible for the catalogue entry, you can update the metadata/data description in DORIS.

Published: 2020-04-01
Last updated: 2023-10-04