M C Fischer et al 2001 J. Opt. B: Quantum Semiclass. Opt. 3 279 doi:10.1088/1464-4266/3/4/313
M C Fischer, A M Dudarev, B Gutiérrez-Medina and M G Raizen
Show affiliationsWe report on an experimental study of recoil-induced resonances as a method of velocimetry for cold atomic samples. We present a refined experimental method that greatly improves the sensitivity of the measurement over previous experiments. Using frequency-modulation (FM) spectroscopy techniques we achieve a sensitivity that approaches the shot noise limit. In addition, we present a novel approach to deriving the line shape of the observed signal, based on the concept of quantum transport and tunnelling in motional Bloch bands.
37.10.Vz Mechanical effects of light on atoms, molecules, and ions
42.60.Fc Modulation, tuning, and mode locking
03.65.Xp Tunneling, traversal time, quantum Zeno dynamics
07.57.-c Infrared, submillimeter wave, microwave and radiowave instruments and equipment
Instrumentation and measurement
Optics, quantum optics and lasers
Issue 4 (August 2001)
Received 6 June 2001
Published 1 August 2001
M C Fischer et al 2001 J. Opt. B: Quantum Semiclass. Opt. 3 279
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