TY - JOUR
T1 - Phase control of group velocity
T2 - From subluminal to superluminal light propagation
AU - Bortman-Arbiv, D.
AU - Wilson-Gordon, A. D.
AU - Friedmann, H.
PY - 2001
Y1 - 2001
N2 - We show that the group velocity of a weak pulse can be manipulated by controlling the phases of two weak optical fields applied to a V-shaped three-level system. Such control can even cause the probe propagation to change from subluminal to superluminal. We consider two schemes: in the first, the excited states are coupled by decay-induced coherence, which is an inherent property of the medium, and in the second, quantum coherence is created by coupling the excited states to each other by a strong microwave field. We also discuss the group velocity reduction experienced by a single weak propagating probe due to decay-induced coherence.
AB - We show that the group velocity of a weak pulse can be manipulated by controlling the phases of two weak optical fields applied to a V-shaped three-level system. Such control can even cause the probe propagation to change from subluminal to superluminal. We consider two schemes: in the first, the excited states are coupled by decay-induced coherence, which is an inherent property of the medium, and in the second, quantum coherence is created by coupling the excited states to each other by a strong microwave field. We also discuss the group velocity reduction experienced by a single weak propagating probe due to decay-induced coherence.
UR - http://www.scopus.com/inward/record.url?scp=18344367312&partnerID=8YFLogxK
U2 - 10.1103/physreva.63.043818
DO - 10.1103/physreva.63.043818
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AN - SCOPUS:18344367312
SN - 1050-2947
VL - 63
SP - 1
EP - 7
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 043818
ER -