TY - JOUR
T1 - Polarization-dependent manipulation of optical properties in a tripod system
AU - Kumar, Santosh
AU - Lauprêtre, Thomas
AU - Bretenaker, Fabien
AU - Goldfarb, Fabienne
AU - Ghosh, Rupamanjari
PY - 2013/8/27
Y1 - 2013/8/27
N2 - We analyze the dependence of the transmission profiles of an atom in a tripod configuration on the polarizations of the coupling and the probe beams and use room-temperature metastable helium (4He*) as a model system. We show that, by rotating the orthogonally polarized coupling-probe beams with respect to an applied small magnetic field, one can manipulate the detuned peaks due to electromagnetically induced transparency and the central peak arising because of ground-state coherent population oscillations observed earlier separately. Our experimental results match well with our numerical simulation using the Floquet method.
AB - We analyze the dependence of the transmission profiles of an atom in a tripod configuration on the polarizations of the coupling and the probe beams and use room-temperature metastable helium (4He*) as a model system. We show that, by rotating the orthogonally polarized coupling-probe beams with respect to an applied small magnetic field, one can manipulate the detuned peaks due to electromagnetically induced transparency and the central peak arising because of ground-state coherent population oscillations observed earlier separately. Our experimental results match well with our numerical simulation using the Floquet method.
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U2 - 10.1103/PhysRevA.88.023852
DO - 10.1103/PhysRevA.88.023852
M3 - Article
AN - SCOPUS:84884898457
SN - 1050-2947
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 2
M1 - 023852
ER -