In: Journal of Applied Physics, 2015/117//104510 -1/5
We demonstrate a high-performance pulsed optically pumped (POP) Rb vapor-cell clock based on a magnetron-type microwave cavity of only 44 cm3 external volume. Using optical detection, an unprecedented 35% contrast of the Ramsey signal has been obtained. Both the signal-to-noise ratio (of 30 000) and the estimated shot-noise limit of 1.7×10-14 τ-1/2 are at the...
In: Applied Physics Letters, 2015/106//163505/1-5
We report an aging study on micro-fabricated alkali vapor cells using neon as a buffer gas. An experimental atomic clock setup is used to measure the cell’s intrinsic frequency, by recording the clock frequency shift at different light intensities and extrapolating to zero intensity. We ﬁnd a drift of the cell’s intrinsic frequency of (-5.2 ± 0.6) × 10-11/day and quantify...
Thèse de doctorat : Université de Neuchâtel, 2014.
Crows and ravens have attracted increasing attention because of the advanced cognitive capacities these birds seem to possess, which have earned them the nickname of “feathered apes”. Indeed, the work carried out in the last two decades has shown that corvids possess abilities that can rival those of monkeys and apes. Birds within this family tend to form long-term monogamous bonds, where...
[Genève?] : [Rochat-Châtelain?], [ca. 1900]
Genève : Musée d'art et d'histoire, 1974
Rio : Organising Committee for the Olympic and Paralympic Games in Rio in 2016, 2014
With regards to sustainable purchasing, Rio 2016 has made the commitment to only source certified timber products for use in Games venues, following internationally recognised norms and standards, based on the principles and criteria of responsible forest management.
Rio : Rio 2016, 2014
The event will be governed by the racing rules of sailing (RRS) 2013/2016 of ISAF, the notice of race, the sailing instructions, the coach boat regulations, the athletes media guide and any other official document published.
Frankfurt : Minerva, 1984
Mainz am Rhein : P. von Zabern, cop. 1989
(Sculptures en pierre du Musée de Genève ; t. 2)