Research output: Contribution to journal › Article
Manipulation of Dark States and Control of Coherent Processes with Spectrally Broad Light. / Auzinsh, Marcis; Bezuglov, Nikolai; Miculis, Kaspars.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 78, No. 5, 2008, p. 0531415_1-10.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Manipulation of Dark States and Control of Coherent Processes with Spectrally Broad Light
AU - Auzinsh, Marcis
AU - Bezuglov, Nikolai
AU - Miculis, Kaspars
PY - 2008
Y1 - 2008
N2 - The formation of dark states under interaction of degenerate atomic states with incoherent broadband radiation (white light) is discussed. A simple coupling scheme in a three level Lambda-system, which allows both qualitative and quantitative analysis is discussed. We found a stationary solution of the optical Bloch equations in a broad excitation line approximation that describes the dynamics of the atom-white light interaction and demonstrated its identity to a conventional dark state created with coherent laser fields. We than examine the efficiency of the population transfer induced by broadband radiation in a model Lambda-system and revealed that high efficiency (attaining 100 percent) of stimulated Raman adiabatic passage-like processes can be achieved with certain temporal control of light polarization. The corresponding criterion of adiabaticity was formulated and justified by means of numerical simulations.
AB - The formation of dark states under interaction of degenerate atomic states with incoherent broadband radiation (white light) is discussed. A simple coupling scheme in a three level Lambda-system, which allows both qualitative and quantitative analysis is discussed. We found a stationary solution of the optical Bloch equations in a broad excitation line approximation that describes the dynamics of the atom-white light interaction and demonstrated its identity to a conventional dark state created with coherent laser fields. We than examine the efficiency of the population transfer induced by broadband radiation in a model Lambda-system and revealed that high efficiency (attaining 100 percent) of stimulated Raman adiabatic passage-like processes can be achieved with certain temporal control of light polarization. The corresponding criterion of adiabaticity was formulated and justified by means of numerical simulations.
U2 - DOI: 10.1103/PhysRevA.78.053415
DO - DOI: 10.1103/PhysRevA.78.053415
M3 - Article
VL - 78
SP - 0531415_1-10
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 5
ER -
ID: 5179257