Jan Marcus Dahlström's research web page

Associate Professor and Senior Lecturer
Mathematical Physics, Department of Physics
Lund University (LTH)
Professorsgatan 1
S-223 63 Lund
Office: B:309
Phone: +46 46 222 90 88
marcus.dahlstrom@fysik.lu.se

Information about me on:

• ORCID-ID.
• GoogleScholar.
• ResearchGate.

Research interests

I have a particular interest in strong-field laser physics and optics, as well as attosecond processes in photoionisation. My curiosity also extends to diagrammatic approaches in many-body physics, and I am fascinated by how classical limits emerge from quantum mechanics. In addition, I am intrigued by non-linear X-ray processes in matter.

For more information on my research, please contact me directly via email.

Research highlights

"Mollow-like Triplets in Ultrafast Resonant Absorption"
Physical Review Letters, 2024.

"Generation of entanglement using a short-wavelength seeded free-electron laser"
Science Advances, 2024.

"Photoelectron signature of dressed-atom stabilization in an intense XUV field"
Physical Review Research, 2023.

"Observation of Rabi dynamics with a short-wavelength free-electron laser"
Nature, 2022.

"Multiphoton interaction phase shifts in attosecond science"
Physical Review Research, 2021.

"Fano's propensity rule in angle-resolved attosecond pump-probe photoionization"
Published in Physical Review Letters, 2019.

"Anisotropic photoemission time delays close to a Fano resonance"
Published in Nature Communications, 2018.

"Photoionization in time and frequency domain"
Published in Science, 2017.

"Spectral phase measurement of a Fano resonance using tunable attosecond pulses"
Published in Nature Communications, 2016.

"Double ionization probed on the attosecond timescale"
Published in Nature Physics, 2014.

"Probing Single-Photon Ionization on the Attosecond Time Scale"
Published in Physical Review Letters, 2011.

Outreach

• Mentioned in the "Yearly Tech Talk" by the Royal Swedish Academy of Engineering Science (IVA) (2024-10-25).
• "New key to the world of quantum mechanics: the intensity of light affects electrons' kinetic energy" (2024-04-22).
• "Ny nyckel till kvantmekanikens värld: ljusets intensitet påverkar elektroners rörelseenergi" (2024-04-22).
• Ledare i Fysikaktuellt (2023-4, p.3): "Hur finner man den 'nya' fysiken?" (2023-12-13).
• "Korta våglängder kan få elektroner att svänga" (2022-08-18).
• "Skapar klockor som mäter ultrakorta laserblixtar" (2021-03-24).
• "Snurrig upptäckt ger nya insikter om fysikaliskt fenomen" (2019-09-24).
• "Intriguing discovery provides new insights into photoelectric effect (2019-10-01).
• "Forskning på gång om världens mest exakta tidtagarur" (2018-12-20).

Interested in joining our group at Lund University (LTH)?

You are welcome to contact Marcus Dahlström via email regarding our research.

Group members

• Rezvan Tahouri: PhD student involved in WAF project (est. 2021-11-01 - today).

• Axel Stenquist: PhD student involved in Swe-Stg/KAW project (2021-09-01 - today).

• Jakob Bruhnke: PhD student in WAF/VR project (2024-09-01 - today).

Openings

Vacancies are published on the website of the Department of Physics.

Contact information

For contact information see Faculty staff pages.

PANDA method

We have recently proposed a method called Pulse Analysis by Delayed Absorption (PANDA). The main merit of the PANDA method is that it can be used as an attosecond pulse characterization method that is free from atomic latency effects, such as scattering phase shifts and long-lived atomic resonances. We also propose that combining the PANDA method with angle-resolved photoelectron detection should allow for experimental measurements of attosecond delays in photoionization from bound wave packets on the order of tens of attoseconds.

Works about the PANDA method

"Eliminating the dipole phase in attosecond pulse characterization using Rydberg wave packets"
Regular article in Physical Review A, 2016.

"Tutorial: Pulse Analysis by Delayed Absorption from a coherently excited atom"
Selected as a featured article in APL Photonics by American Institute of Physics (2018).

Alumni

• Edvin Olofsson: PhD student involved in Swe-Stg project (2019-11-01 - 2024-06-12).

• Evan Langloys: Exchange student from Ecole Normale Superieure de Lyon (2024-04-23 - 2024-07-23).

• Yijie Liao: Exchange PhD student from Huazhong University of Science and Technology (2023-03-01 - 2024-06-29) (PhD at HUST on 2024-11-16).

• Jakob Bruhnke: MSc student at Mathematical Physics Division (Axel Stenquist was co-supervisor) (2023-08-28 - 2024-05-23).
  Jakob Bruhnke's Master's thesis "Two-photon Rabi oscillations in hydrogen: A theoretical study of effective Hamiltonian approaches".

• Asimina Papoulia: Post-Doc involved in WAF project (2021-10-01 - 2023-12-31).

• Stefanos Carlström: Post-Doc involved in VR project (2020-07-01 - 2023-12-31). Then Post-doc at Max Born Institute with Professor Olga Smirnova (MBI) in Berlin.

• Mattias Bertolino: PhD student involved in KAW project (2018-09-01 - 2023-05-26). Then Post-doc at Charles University with Professor Zdenek Masin in Prague.

• Axel Eriksson: Summer research project (2023 Summer)

• Felipe Zapata: Post-Doc involved in Swe-Stg project (2019-11-01 - 2022-12-31) Then Post-doc at Universidad Autonoma de Madrid (UAM) in Madrid.

• Elna Svegborn: Summer research project 2022.

• Jimmy Vinbladh: Joint Lic./Researcher at Stockholm and Lund University (2015-01-01 - 2021-12-31).

• David Busto: Joint PhD student at Atomic Physics of Lund University (2016-09-12 - 2020-08-28). Then Post-Doc in Freiburg in the group of Professor Dr. Sansone.

• Axel Stenquist: MSc student at Mathematical Physics Division (Felipe Zapata was co-supervisor, 2020-08-31 - 2021-05-10). DOWNLOAD → PhD student in the Research Group
  Axel Stenquist's Master's thesis "Microscopic and Macroscopic Samples of Atoms in Superposition States Studied by Attosecond Pulses".

• Xiaolin Bian: MSc student at Mathematical Physics Division (2019-01-21 - 2019-05-06).  Now working at the Chinese Academy of Science in Beijing.