Naslov
Mapping of the Optical Frequency Comb to the Atom Velocity Comb

Autori
Aumiler, Damir ; Ban, Ticijana ; Skenderović, Hrvoje ; Pichler, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Achievements and perspectives of cold molecules, Les Houches 2006. / - , 2006

Skup
Achievements and perspectives of cold molecules, Les Houches 2006.

Mjesto i datum
Les Houches, Francuska, 27.02.2006. - 09.03.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
frequency comb; optical pumping; rubidium

Sažetak
We present the experimental and theoretical study of the resonant excitation of rubidium atoms with fs pulse train in the conditions when the pulse repetition period is shorter than the atomic relaxation time. The velocity selective optical pumping of the ground state hyperfine levels and velocity comb-like excited state hyperfine level populations are demonstrated. Both effects are a direct consequence of the fs pulse train excitation considered in the frequency domain. A simple experimental apparatus was employed to develop a modified direct frequency comb spectroscopy which uses a fixed frequency comb for the 85, 87Rb 52S1/2→ 52P1/2, 3/2 excitation and a weak cw scanning probe laser for ground levels population monitoring. The results show that it is possible to directly manipulate the fractional populations of hyperfine ground state levels by varying the comb optical frequency spectrum. This could lead to interesting applications in the field of atomic and molecular switching and finally to quantum computing. Recent experiments with rubidium and cesium will be discussed together with some obvious theoretical predictions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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