Hannover 2016 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 29: Atomic clusters (with MO)

A 29.6: Poster

Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof

Photobleaching in the XUV: A test for XUV-cluster collective phenomena — •Edward Ackad¹, Kasey Barrington¹, Rishi Pandit¹, Nicolas Bigaouette², and Lora Ramunno² — ¹Department of Physics, Southern Illinois University Edwardsville, Edwardsville Il, USA — ²Department of Physics, University of Ottawa, Ottawa, On, Canada

The XUV offers an ideal regime to test collective phenomena since the laser communication with rare gas clusters is almost exclusively through single photon ionization. We propose and model an experiment to test whether any collective phenomena do occur by saturating the single photon ionization channel, inducing transparency termed photobleaching. This is done with an XUV pump pulse of sufficient intensity to saturate the single photon ionization channel. A second equally intense XUV probe pulse then follows. Any collective phenomena will deviate from the current atomistic model, if any exist. Results are presented for the clusters at peak intensity and expected time-of-flight signals for Argon and Xenon.