Ramsey spectroscopy of bound atomic states with extreme-ultraviolet laser harmonics

We report the experimental measurement of Ramsey interference fringes in the single-photon excitation to a high-lying bound state of atomic argon by pairs of phase-locked, time-delayed, extreme UV high-order-harmonic pulses at 87 nm. High-visibility Ramsey fringes are observed for delays larger than...

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Bibliographic Details
Published inOptics letters Vol. 35; no. 6; p. 832
Main Authors Liontos, I, Cavalieri, S, Corsi, C, Eramo, R, Kaziannis, S, Pirri, A, Sali, E, Bellini, M
Format Journal Article
LanguageEnglish
Published United States 15.03.2010
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Summary:We report the experimental measurement of Ramsey interference fringes in the single-photon excitation to a high-lying bound state of atomic argon by pairs of phase-locked, time-delayed, extreme UV high-order-harmonic pulses at 87 nm. High-visibility Ramsey fringes are observed for delays larger than 100 ps, thus demonstrating a potential resolving power >10(5) at this wavelength.
ISSN:1539-4794
DOI:10.1364/OL.35.000832