Journal
JOURNAL OF MODERN OPTICS
Volume 57, Issue 14-15, Pages 1366-1376Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500341003658147
Keywords
electromagnetically induced transparency; Autler-Townes scattering; quantum interference; three-level ladder
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In this paper we explore the physical origin of the transparency induced in absorbing three-level cascade atoms by the simultaneous interplay of two coherent beams of light. By utilizing the scattering technique we offer what we believe is a very convincing physical evidence for the existence, or for the absence, of quantum interference effects in the two considered ladder systems. Bare and dressed states pictures are adopted in two different field regimes when applicable. The conclusions are drawn based on the existence of different excitation pathways and their relative orders of magnitudes. The presented study includes a distinction between the Autler-Townes (AT) and electromagnetically induced transparency (EIT) phenomena.
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