Influence of the finite linewidth of the laser radiation spectrum on the shape of the coherent population trapping resonance line in an optically dense medium with a buffer gas

2015 ◽  
Vol 121 (5) ◽  
pp. 758-769 ◽  
Author(s):  
K. A. Barantsev ◽  
E. N. Popov ◽  
A. N. Litvinov
Keyword(s):  
Laser Radiation ◽  
Resonance Line ◽  
Radiation Spectrum ◽  
Coherent Population Trapping ◽  
Dense Medium ◽  
Buffer Gas ◽  
Population Trapping

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.

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 Investigation of coherent population trapping signals in 87Rb cells with buffer gas

2016 ◽  
Vol 769 ◽  
pp. 012046
Author(s):  
M I Fedorov ◽  
S V Ermak ◽  
M V Petrenko ◽  
E N Pyatyshev ◽  
V V Semenov
Keyword(s):  
Coherent Population Trapping ◽  
Buffer Gas ◽  
Population Trapping

scholarly journals The Microfabricated Alkali Vapor Cell with High Hermeticity for Chip-Scale Atomic Clock

2022 ◽  
Vol 12 (1) ◽  
pp. 436
Author(s):  
Shuo Jia ◽  
Zhiyuan Jiang ◽  
Binbin Jiao ◽  
Xiaochi Liu ◽  
Yijie Pan ◽  
...  
Keyword(s):  
Laser Intensity ◽  
Atomic Clock ◽  
Coherent Population Trapping ◽  
Wet Etching ◽  
Anodic Bonding ◽  
Buffer Gas ◽  
Single Chip ◽  
Cell Temperature ◽  
Vapor Cell ◽  
Population Trapping

Herein, a microfabricated millimeter-level vapor alkali cell with a high hermeticity is fabricated through a wet etching and single-chip anodic bonding process. The vapor cell, containing Rb and N2, was investigated in a coherent population trapping (CPT) setup for the application of a chip-scale atomic clock (CSAC). The contrast of CPT resonance is up to 1.1% within the only 1 mm length of light interacting with atom. The effects of some critical external parameters on the CPT resonance, such as laser intensity, cell temperature, and buffer gas pressure, are thoroughly studied and optimized. The improved microfabricated vapor cell also exhibited great potential for other chip-scale atomic devices.

Erratum: Coherent-population-trapping resonances in buffer-gas-filled Cs-vapor cells with push-pull optical pumping [Phys. Rev. A87, 013416 (2013)]

2013 ◽  
Vol 87 (2) ◽  
Author(s):  
Xiaochi Liu ◽  
Jean-Marc Mérolla ◽  
Stéphane Guérandel ◽  
Christophe Gorecki ◽  
Emeric de Clercq ◽  
...  
Keyword(s):  
Optical Pumping ◽  
Coherent Population Trapping ◽  
Buffer Gas ◽  
Vapor Cells ◽  
Population Trapping
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