SUB-NATURAL LINEWIDTH OPTICAL-PUMPING DIPS IN A HOMOGENEOUSLY BROADENED SPECTRAL LINE
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Abstract
Sub-natural linewidth optical-pumping dips have been observed in a homogeneously broadened. fluorescence line in Na atomic beam spectroscopy. To our knowledge, this is the first observation of sub-natural linewidth dip by optical pumping. A theoretic explanation is given.
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