Effect of buffer gas ratios on the relationship between cell temperature and frequency shifts of the coherent population trapping resonance

2008 ◽  
Vol 92 (21) ◽  
pp. 211104 ◽  
Author(s):  
K. Deng ◽  
T. Guo ◽  
D. W. He ◽  
X. Y. Liu ◽  
L. Liu ◽  
...  
Keyword(s):  
Coherent Population Trapping ◽  
Buffer Gas ◽  
Cell Temperature ◽  
Frequency Shifts ◽  
The Relationship ◽  
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.

scholarly journals Coherent population trapping in small- and chip-scale 87Rb vapor cells with buffer gas

2016 ◽  
Vol 41 ◽  
pp. 1660138 ◽  
Author(s):  
S. V. Ermak ◽  
V. V. Semenov ◽  
M. V. Petrenko ◽  
E. N. Pyatyshev
Keyword(s):  
Signal To Noise Ratio ◽  
Frequency Instability ◽  
Coherent Population Trapping ◽  
Buffer Gas ◽  
Cell Temperature ◽  
Narrow Line Width ◽  
Rb Vapor ◽  
Laser Pumping ◽  
Vapor Cells ◽  
Population Trapping

The characteristics of coherent population trapping (CPT) signal were investigated in small-size glass vapor cells containing [Formula: see text]Rb and Ne buffer gas with narrow line-width laser pumping on D2 line. The parameters of CPT signals were measured using small-size vapor cells with Ne buffer gas pressure in the range of 200–400 Torr, cell temperature in the range of 65–120 [Formula: see text]C and the values of laser pumping power of 30–400 [Formula: see text]W/cm2. Optimal conditions, under which the minimal value of short-term instability of resonance line is achieved, were obtained in experiments. Orientation frequency shifts of CPT resonance using glass [Formula: see text]Rb vapor cells containing buffer gas and anti-relaxation coating were compared. CPT signals using vapor cells based on integrated technologies containing [Formula: see text]Rb in atmosphere of Ne were also investigated. The CPT signals with typical line widths of 2–3 kHz and signal-to-noise ratio of 1500 in 1 Hz bandwidth are observed, which allows one to provide relative frequency instability of 10[Formula: see text] at 100 s.

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 Modulation-induced frequency shifts in a coherent-population-trapping-based atomic clock

2005 ◽  
Vol 22 (2) ◽  
pp. 305 ◽  
Author(s):  
David F. Phillips ◽  
Irina Novikova ◽  
Christine Y.-T. Wang ◽  
Ronald L. Walsworth ◽  
Michael Crescimanno
Keyword(s):  
Atomic Clock ◽  
Coherent Population Trapping ◽  
Frequency Shifts ◽  
Population Trapping

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

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.

Characterizing passive coherent population trapping resonance in a cesium vapor cell filled with neon buffer gas

2013 ◽  
Vol 22 (4) ◽  
pp. 043201 ◽  
Author(s):  
Zhi Liu ◽  
Jie-Ying Wang ◽  
Wen-Ting Diao ◽  
Jun He ◽  
Jun-Min Wang
Keyword(s):  
Coherent Population Trapping ◽  
Buffer Gas ◽  
Cesium Vapor ◽  
Vapor Cell ◽  
Population Trapping
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