Creating coherent hole wave packets with strong-field pulses

[摘要] A new approach is identified that can generate highly coherent hole wave packets with multi-cycle strong-field pulses and stands in contrast to the usual idea of making the ionizing pulse as short as possible. The effect is demonstrated in atomic xenon with a spin-orbit wave packet involving the 5p-13/2and 5p-11/2ionic states. Tuning the driving frequency to an even fraction of the hole oscillation frequency ensures the creation of highly coherent holes.

[发布机构] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, Hamburg; 22607, Germany^1;ITAMP, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge; MA; 02138, United States^2;Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Strasse 10, Zürich; 8093, Switzerland^3

[关键词] Atomic xenon;Driving frequencies;Ionic state;Multi cycle;New approaches;Oscillation frequency;Spin orbits;Strong field