We performed an experimental and theoretical investigation of Ramsey-type spectroscopy in conjunction with high-order-harmonic generation. The ninth harmonic 88 nm of a femtosecond Ti:sapphire laser was used to excite a pair of autoionizing states of krypton. The outcome of the ionization process, detected by an ion-mass spectrometer, shows the characteristic quantum interference pattern. The behavior of the fringe contrast was interpreted on the basis of a simple analytical model, which reproduced well the experimental results without any free parameter.
Extreme-ultraviolet Ramsey-type spectroscopy / A. Pirri; E. Sali; C. Corsi; M. Bellini; S. Cavalieri; R. Eramo. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - STAMPA. - 78:(2008), pp. 043410-043410-7. [10.1103/PhysRevA.78.043410]
Extreme-ultraviolet Ramsey-type spectroscopy
CORSI, CHIARA;CAVALIERI, STEFANO;
2008
Abstract
We performed an experimental and theoretical investigation of Ramsey-type spectroscopy in conjunction with high-order-harmonic generation. The ninth harmonic 88 nm of a femtosecond Ti:sapphire laser was used to excite a pair of autoionizing states of krypton. The outcome of the ionization process, detected by an ion-mass spectrometer, shows the characteristic quantum interference pattern. The behavior of the fringe contrast was interpreted on the basis of a simple analytical model, which reproduced well the experimental results without any free parameter.
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