Noise sensitivity of an atomic velocity sensor

Details Noise sensitivity of an atomic velocity sensor Noise sensitivity of an atomic velocity sensor

2005-03-11

arxiv.org/abs/physics/0503096v1

Physics

Atomic Physics

Scientific paper

10.1140/epjd/e2005-00064-2

We use Bloch oscillations to accelerate coherently Rubidium atoms. The variation of the velocity induced by this acceleration is an integer number times the recoil velocity due to the absorption of one photon. The measurement of the velocity variation is achieved using two velocity selective Raman pi-pulses: the first pulse transfers atoms from the hyperfine state 5S1/2 |F=2, mF=0> to 5S1/2, |F=1, mF = 0> into a narrow velocity class. After the acceleration of this selected atomic slice, we apply the second Raman pulse to bring the resonant atoms back to the initial state 5S1/2, |F=2, mF = 0>. The populations in (F=1 and F=2) are measured separately by using a one-dimensional time-of-flight technique. To plot the final velocity distribution we repeat this procedure by scanning the Raman beam frequency of the second pulse. This two pi-pulses system constitutes then a velocity sensor. Any noise in the relative phase shift of the Raman beams induces an error in the measured velocity. In this paper we present a theoretical and an experimental analysis of this velocity sensor, which take into account the phase fluctuations during the Raman pulses.

Affiliated with

Also associated with

No associations

Rating

Noise sensitivity of an atomic velocity sensor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Noise sensitivity of an atomic velocity sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise sensitivity of an atomic velocity sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-345591