Mainz 2026 – scientific programme
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A: Fachverband Atomphysik
A 6: Attosecond Physics I (joint session A/MO)
A 6.5: Talk
Monday, March 2, 2026, 18:15–18:30, N 1
Absolute photoemission timing in noble gases — •Maximilian Forster1, Maximilian Pollanka1, Sven Paul1, Christian Schröder1, Pascal Freisinger1, Anatoli Kheifets2, and Reinhard Kienberger1 — 1Chair for laser and x-ray physics, E11, Technische Universität München, Germany — 2Research School of Physical Sciences, The Australian National University, Canberra ACT 0200, Australia
We measured the photoemission time delay in noble gases, namely neon and xenon across different photon energies using the attosecond streaking technique.
The photoemission delay of neon, being the first ever evidence of atomic delay, has received repeated attention by both experimental and theoretical investigations due to the large cross section and convenient properties of neon. As a helium reference is no possible for neon, we used iodoemthane as a chronoscope. The internal delay between Ne2s and Ne2p can be extracted simultaneously, allowing for a consistency check with previous experiments conducted only with neon.
The Xenon states Xe4d and Xe5s can be measured straightforward relative to helium and are compared to theoretical calculations.
Keywords: Attosecond streaking; Photoemission delay; Chronoscopy