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.
Ramsey spectroscopy of bound atomic states with extreme ultraviolet laser harmonics
Eramo R;Pirri A;Bellini M
2010
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.File in questo prodotto:
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Descrizione: Ramsey spectroscopy of bound atomic states with extreme-ultraviolet laser harmonics
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