title: Optical detection of cold atoms without spontaneous emission.
abstract: We have demonstrated nondestructive detection of cold atoms with a probe laser by a frequency-modulation spectroscopy technique. We were able to tune the probe laser and its sidebands far from atomic resonance to reduce the spontaneous emission to less than 0.2 photon per atom during detection.
authors: Laboratoire Charles Fabry de l'Institut d'Optique, Unité Mixte du Centre National de Recherche Scientifique 8501, B.P. 147, 91403 Orsay Cedex, France.
authors: V
authors: V
authors: Savalli
authors: G Z
authors: GZ
authors: Horvath
authors: P D
authors: PD
authors: Featonby
authors: L
authors: L
authors: Cognet
authors: N
authors: N
authors: Westbrook
authors: C I
authors: CI
authors: Westbrook
authors: A
authors: A
authors: Aspect