Existing optical lattice clocks demonstrate a high level of performance but they remain complex experimental devices. In order to address a wider range of applications including those requiring transportable devices, it will be necessary to simplify the laser systems and reduce the amount of support hardware. Here we demonstrate two significant steps towards this goal: demonstration of clock signals from a Sr lattice clock based solely on semiconductor laser technology, and a method for finding the clock transition (based on a coincidence in atomic wavelengths) that removes the need for extensive frequency metrology hardware. Moreover, the unexpected high contrast in the signal revealed evidence of density dependent collisions in 88Sr atoms.

A simplified optical lattice clock / N. Poli; M. G. Tarallo; M. Schioppo; C. W. Oates; G. M. Tino. - In: APPLIED PHYSICS. B, LASERS AND OPTICS. - ISSN 0946-2171. - STAMPA. - 97:(2009), pp. 27-33. [10.1007/s00340-009-3488-x]

A simplified optical lattice clock

POLI, NICOLA;SCHIOPPO, MARCO;TINO, GUGLIELMO MARIA
2009

Abstract

Existing optical lattice clocks demonstrate a high level of performance but they remain complex experimental devices. In order to address a wider range of applications including those requiring transportable devices, it will be necessary to simplify the laser systems and reduce the amount of support hardware. Here we demonstrate two significant steps towards this goal: demonstration of clock signals from a Sr lattice clock based solely on semiconductor laser technology, and a method for finding the clock transition (based on a coincidence in atomic wavelengths) that removes the need for extensive frequency metrology hardware. Moreover, the unexpected high contrast in the signal revealed evidence of density dependent collisions in 88Sr atoms.
2009
97
27
33
N. Poli; M. G. Tarallo; M. Schioppo; C. W. Oates; G. M. Tino
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/362233
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