Scientific Results

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

Year: 2010

Authors: Liontos I., Cavalieri S., Corsi C., Eramo R., Kaziannis S., Pirri A., Sali E., Bellini M.

Autors Affiliation: LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Firenze, Italy; Dipartimento di Fisica—Università di Firenze, and CNISM, Via G. Sansone 1, I-50019 Sesto Fiorentino, Firenze, Italy; Istituto Nazionale di Ottica—CNR, Largo E. Fermi 6, I-50125 Firenze, Italy

Abstract: 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. (c) 2010 Optical Society of America

Journal/Review: OPTICS LETTERS

Volume: 35 (6)      Pages from: 832  to: 834

More Information: Work partially supported by Ente Cassa di Risparmio di Firenze and by the European Commissions FP7 under grant agreement 228334. We acknowledge R. Ballerini, A. Hajeb, M. Giuntini, M. De Pas, and A. Montori for technical assistance.
KeyWords: Atomic state; Bound state; Experimental measurements; Extreme ultraviolets; Extreme uv; Interference fringe; Ramsey fringes; Ramsey spectroscopy; Resolving power; Single photon excitation, Argon; Ultraviolet lasers, Atomic spectroscopy
DOI: 10.1364/OL.35.000832

Citations: 11
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