Open AccessCoupling of autoionizing states by a chirped laser pulse
Author(s) -
M. Z̆itnik,
A. Mihelič,
K. Bučar,
M. Hrast,
Žiga Barba,
Špela Krušič,
Primož Rebernik Ribič,
J. Urbančič,
B. Ressel,
Matija Stupar,
Luca Poletto,
Marcello Coreno,
David Gauthier,
G. De Ninno
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/8/082008
Subject(s) - autoionization , chirp , extreme ultraviolet , atomic physics , physics , laser , pulse (music) , extreme ultraviolet lithography , coupling (piping) , ion , helium , excitation , optics , ionization , materials science , photoionization , quantum mechanics , detector , metallurgy
Synopsis We have observed the autoionization of the laser-coupled 2s2 p 1 P o and 2 p 2 1 S e resonances in helium. The ions were collected while varying the frequency and delay of the extreme-ultraviolet (EUV) excitation pulse with respect to the linearly chirped visible (VIS) laser pulse. From the measured frequency-delay map the Autler-Townes splitting, the EUV-VIS cross-correlation and the linear chirp parameter were extracted.