Coherent trapping of atomic populations.
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A form of coherent trapping that occurs when multiple resonant laser beams are used to couple the various ground states to a common upper level is described, which prevents the extraction of the entire population.Abstract:
It is often desirable in laser spectroscopy and isotope separation to extract as much as possible of an atomic or molecular population that is distributed among a number of ground-state sublevels and low-lying metastable levels. We describe a form of coherent trapping that occurs when multiple resonant laser beams are used to couple the various ground states to a common upper level. This effect prevents the extraction of the entire population. We then study the effect with two dye lasers and an atomic beam and suggest possible ways to maximize the pumping efficiency.read more
Citations
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Electromagnetically induced transparency : Optics in coherent media
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Book ChapterDOI
Coherent Population Trapping in Laser Spectroscopy
TL;DR: In this article, the authors describe the coherent population trapping in laser spectroscopy and discuss the basic properties of an atomic system prepared with coherent population-trapping superposition of states.
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Electromagnetically induced transparency
TL;DR: In this paper, the basic physical ideas behind electromagnetically induced transparency (EIT) are elucidated and the relation of EIT to other processes involving laser-induced atomic coherence, such as coherent population trapping, coherent adiabatic population transfer and lasing without inversion, is discussed.
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Laser-induced population transfer by adiabatic passage techniques.
TL;DR: Some basic techniques for laser-induced adiabatic population transfer between discrete quantum states in atoms and molecules are reviewed.
References
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Journal ArticleDOI
An experimental method for the observation of r.f. transitions and laser beat resonances in oriented Na vapour
TL;DR: In this article, a method which allows a direct picture of phenomena involving line broadening, light shifts and many-photon transitions in the ground state of sodium atoms pumped by dye-laser is reported.
Journal ArticleDOI
Nonabsorbing atomic coherences by coherent two-photon transitions in a three-level optical pumping
E. Arimondo,G. Orriols +1 more
TL;DR: In this article, a three-level system, with two ground state levels and an excited level, irradiated by two classical monocromatic light fields is theoretically considered, and a ground state coherence appears via coherent two-proton transitions which originates a destructive interference between the two optical excitations.