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Observation and Control of Laser-Enabled Auger Decay.

D Iablonskyi¹, K Ueda¹, K L Ishikawa^2,3

¹Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.

Physical Review Letters

|September 27, 2017

Summary

This summary is machine-generated.

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.

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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.