TY - JOUR
T1 - Optically induced Faraday effect in a Λ configuration of spin-polarized cold cesium atoms
AU - Choi, Jai Min
AU - Kim, Jang Myun
AU - Park, Q. Han
AU - Cho, D.
PY - 2007
Y1 - 2007
N2 - Polarization rotation of weak probe light induced by circularly polarized strong coupling light in a Λ configuration is studied. We use spin-polarized cold cesium atoms trapped in a magneto-optical trap to remove complications from Zeeman distribution, Doppler broadening, and collisional decoherence. By using a very low probe intensity and short illumination period we work in a strictly linear regime. The probe and the coupling fields are optically phase locked to eliminate phase fluctuation and consequent atomic decoherence. Using this idealized situation we clarify the roles of optically induced Faraday rotation, circular dichroism, and electromagnetically induced transparency (EIT) in determining the final state of the probe light. In particular, we identify an experimental situation where the roles of atomic coherence and EIT are important.
AB - Polarization rotation of weak probe light induced by circularly polarized strong coupling light in a Λ configuration is studied. We use spin-polarized cold cesium atoms trapped in a magneto-optical trap to remove complications from Zeeman distribution, Doppler broadening, and collisional decoherence. By using a very low probe intensity and short illumination period we work in a strictly linear regime. The probe and the coupling fields are optically phase locked to eliminate phase fluctuation and consequent atomic decoherence. Using this idealized situation we clarify the roles of optically induced Faraday rotation, circular dichroism, and electromagnetically induced transparency (EIT) in determining the final state of the probe light. In particular, we identify an experimental situation where the roles of atomic coherence and EIT are important.
UR - http://www.scopus.com/inward/record.url?scp=33846563580&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.75.013815
DO - 10.1103/PhysRevA.75.013815
M3 - Article
AN - SCOPUS:33846563580
SN - 1050-2947
VL - 75
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 1
M1 - 013815
ER -