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Observation and Control of Laser-Enabled Auger Decay
D Iablonskyi1, K Ueda1, K L Ishikawa2,3
1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.
Physical Review Letters
|September 27, 2017
Summary
Researchers experimentally observed single-photon laser-enabled Auger decay (spLEAD) in neon for the first time. This technique uses free-electron laser pulses to control and study electron emissions, offering insights into electron correlation.
Area of Science:
- Atomic and Molecular Physics
- Quantum Optics
- Ultrafast Science
Background:
- Single-photon laser-enabled Auger decay (spLEAD) is a theoretically predicted phenomenon.
- Experimental observation of spLEAD is crucial for validating theoretical models and understanding electron correlation dynamics.
Purpose of the Study:
- To report the first experimental observation of single-photon laser-enabled Auger decay (spLEAD).
- To demonstrate coherent control over the angular distribution of emitted electrons in spLEAD.
- To establish spLEAD as a sensitive probe for electron correlation and ultrafast hole migration.
Main Methods:
- Utilizing coherent, bichromatic free-electron laser pulses.
- Detecting emitted electrons to observe the spLEAD process.
- Modulating the phase difference between laser fields to control electron angular distribution.
Main Results:
- First experimental observation of single-photon laser-enabled Auger decay (spLEAD) in neon.
- Demonstrated coherent control over the angular distribution of emitted electrons.
- Confirmed the sensitivity of spLEAD to electron correlation.
Conclusions:
- spLEAD has been experimentally observed, validating theoretical predictions.
- Coherent control of electron emission via phase manipulation is achievable.
- spLEAD presents a promising new method for investigating electron correlation and ultrafast hole dynamics in complex systems.
