FM spectroscopy in recoil-induced resonances
نویسندگان
چکیده
We 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.
منابع مشابه
Recoil-induced resonances in pump-probe spectroscopy including effects of level degeneracy.
متن کامل
0 Recoil - Induced - Resonances in Nonlinear , Ground - State , Pump - Probe Spectroscopy
A theory of pump-probe spectroscopy is developed in which optical fields drive two-photon Raman transitions between ground states of an ensemble of three-level Λ atoms. Effects related to the recoil the atoms undergo as a result of their interactions with the fields are fully accounted for in this theory. The linear absorption coefficient of a weak probe field in the presence of two pump fields...
متن کامل2 00 1 Recoil - Induced - Resonances in Nonlinear , Ground - State , Pump - Probe Spectroscopy
A theory of pump-probe spectroscopy is developed in which optical fields drive two-photon Raman transitions between ground states of an ensemble of three-level atoms. Effects related to the recoil the atoms undergo as a result of their interactions with the fields are fully accounted for in this theory. The linear absorption coefficient of a weak probe field in the presence of two pump fields o...
متن کاملJa n 20 01 Recoil - Induced - Resonances in Nonlinear , Ground - State , Pump - Probe Spectroscopy
A theory of pump-probe spectroscopy is developed in which optical fields drive two-photon Raman transitions between ground states of an ensemble of three-level atoms. Effects related to the recoil the atoms undergo as a result of their interactions with the fields are fully accounted for in this theory. The linear absorption coefficient of a weak probe field in the presence of two pump fields o...
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تاریخ انتشار 2001