Analyzing High-Order Waves in Attosecond Photoionization of Helium
Author Information
Author(s): Wenyu Jiang, Luke Roantree, Lulu Han, Jiabao Ji, Yidan Xu, Zitan Zuo, Hans Jakob Wörner, Kiyoshi Ueda, Andrew C. Brown, Hugo W. van der Hart, Xiaochun Gong, Jian Wu
Primary Institution: State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China
Hypothesis
Can a heterodyne analysis approach reveal the role of high-order partial waves during photoionization?
Conclusion
The study demonstrates that high-order partial waves significantly influence photoelectron angular distributions in attosecond photoionization.
Supporting Evidence
- Partial wave analysis is crucial for understanding photoionization mechanisms.
- The heterodyne approach allows for the detection of higher-order partial waves.
- Interference between different partial waves significantly affects angular distributions.
- Even small contributions from higher-order processes can modify photoionization time delays.
- The study extends the RABBITT technique into the few-photon regime.
Takeaway
This study shows that even small contributions from higher-order waves can change how we see electrons being emitted from atoms when they are hit by light.
Methodology
The study used a heterodyne detection method to analyze the interference between partial waves in photoionization experiments.
Limitations
The contribution of the g0 wave is small, making it challenging to isolate its effects in the overall signal.
Digital Object Identifier (DOI)
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