The Effect of the Hyperfine Structure of an Excited Level on the Shape of the Coherent Population Trapping Resonance under Ramsey Interrogation in an Optically Dense Medium

2019 ◽  
Vol 129 (1) ◽  
pp. 1-8
Author(s):  
G. V. Voloshin ◽  
K. A. Barantsev ◽  
E. N. Popov ◽  
A. N. Litvinov
Keyword(s):  
Hyperfine Structure ◽  
Excited Level ◽  
Coherent Population Trapping ◽  
Dense Medium ◽  
Population Trapping

scholarly journals Light shift of the Ramsey resonance of coherent population trapping in optically dense medium

2018 ◽  
Vol 190 ◽  
pp. 04003 ◽  
Author(s):  
Konstantin Barantsev ◽  
Gavriil Voloshin ◽  
Andrey Litvinov ◽  
Evgeniy Popov
Keyword(s):  
Laser Pulses ◽  
Coherent Population Trapping ◽  
Dense Medium ◽  
Light Shift ◽  
Atomic Ensembles ◽  
Trapping Effect ◽  
Population Trapping ◽  
Ramsey Resonance

In this work we calculate the Ramsey resonances of coherent population trapping effect in cold atomic ensembles. The main goal is to investigate the light shift of the resonance on the different parameters in optically dense medium, because such medium can to distort and absorb the interrogating laser pulses.

scholarly journals Transport of laser emission with broadband spectrum in optically dense atomic medium under the coherent population trapping

2016 ◽  
Vol 41 ◽  
pp. 1660137 ◽  
Author(s):  
K. A. Barantsev ◽  
A. N. Litvinov ◽  
E. N. Popov
Keyword(s):  
Laser Emission ◽  
Coherent Population Trapping ◽  
Dense Medium ◽  
Fluorescence Signal ◽  
Buffer Gas ◽  
Broadband Spectrum ◽  
Atomic Medium ◽  
Transfer Equations ◽  
A Cell ◽  
Population Trapping

The paper presents a theory describing the formation of the coherent population trapping resonance for the finite laser bandwidth in an optically-dense medium of atoms inside a buffer gas cell. The equations of the atomic density matrix are established, as well as the transfer equations of laser emission spectrum inside a cell with working and buffer gas at a determined temperature. The dependence of the quality of the coherent population trapping resonance on the laser bandwidth has been studied in the case of detecting the signal of the transmitted emission and the fluorescence signal.

Coherent population trapping in quantum systems

1993 ◽  
Vol 163 (9) ◽  
pp. 1 ◽  
Author(s):  
B.D. Agap'ev ◽  
M.B. Gornyi ◽  
B.G. Matisov ◽  
Yu.V. Rozhdestvenskii
Keyword(s):  
Quantum Systems ◽  
Coherent Population Trapping ◽  
Population Trapping
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