244 citations · 582 across the 7 of their papers we have counts for
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Atomic excitation during recollision-free ultrafast multi-electron tunnel ionization
W. A. Bryan, S. L. Stebbings, J. McKenna +12
Modern intense ultrafast pulsed lasers generate an electric field of sufficient strength to permit tunnel ionization of the valence electrons in atoms. This process is usually trea…
Ultra-low noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock
J. Millo, M. Abgrall, M. Lours +8
We demonstrate the use of a fiber-based femtosecond laser locked onto an ultra-stable optical cavity to generate a low-noise microwave reference signal. Comparison with both a liqu…
On the recollision-free excitation of krypton during ultrafast multi-electron tunnel ionization
W A Bryan, S L Stebbings, J McKenna +7
The probability of multiple ionization of krypton by 50 femtosecond circularly polarized laser pulses, independent of the optical focal geometry, has been obtained for the first ti…
Geometry- and diffraction-independent ionization probabilities in intense laser fields: probing atomic ionization mechanisms with effective intensity matching
W. A. Bryan, S. L. Stebbings, E. M. L. English +11
We report a novel experimental technique for the comparison of ionization processes in ultrafast laser pulses irrespective of pulse ellipticity. Multiple ionization of xenon by 50…