Ultrafast Science, Volume. 3, Issue 1, 0034(2023)

Optical Measurement of Photorecombination Time Delays

Chunmei Zhang1,2、†,*, Graham Brown1,3、†,*, Dong Hyuk Ko1, and P. B. Corkum1
Author Affiliations
  • 1Joint Attosecond Science Laboratory, University of Ottawa and National Research Council of Canada, 25 Templeton St, Ottawa, ON K1N 6N5, Canada.
  • 2Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, China.
  • 3Max Born Institute, Max Born Str. 2a, 12489 Berlin, Germany.
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    Recollision physics and attosecond pulse generation meld the precision of optics with collision physics. As a follow-up to our previous work, we reveal a new direction for the study of electronic structure and multielectron dynamics by exploiting the collision-physics nature of recollision. We show experimentally that, by perturbing recollision trajectories with an infrared field, photorecombination time delays can be measured entirely optically using the Cooper minimum in argon as an example. In doing so, we demonstrate the relationship between recollision trajectories and the transition moment coupling the ground and continuum states. In particular, we show that recollision trajectories are influenced by their parent ion, while it is commonly assumed they are not. Our work paves the way for the entirely optical measurement of ultrafast electron dynamics and photorecombination delays due to electronic structure, multielectron interaction, and strong-field-driven dynamics in complex molecular systems and correlated solid-state systems.

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    Chunmei Zhang, Graham Brown, Dong Hyuk Ko, P. B. Corkum. Optical Measurement of Photorecombination Time Delays[J]. Ultrafast Science, 2023, 3(1): 0034

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    Paper Information

    Category: Research Articles

    Received: Nov. 4, 2022

    Accepted: Jun. 5, 2023

    Published Online: Nov. 1, 2023

    The Author Email: Zhang Chunmei (chunmei.zhang@bit.edu.cn), Brown Graham (graham.brown@uottawa.ca)

    DOI:10.34133/ultrafastscience.0034

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