Record Details

<strong>Parametric Study of CPT Resonance in Rubidium Vapor Cell for Application in Atomic Clock</strong>

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement <strong>Parametric Study of CPT Resonance in Rubidium Vapor Cell for Application in Atomic Clock</strong>
 
Added Entry - Uncontrolled Name Kaitha, Rajaiah ; U R Rao Satellite Centre, ISRO
R., Manjula ; Laboratory for Electro-Optics Systems, ISRO
Tiwari, Pragya ; Laboratory for Electro-Optics Systems, ISRO
Kappen, Minni J.; Laboratory for Electro-Optics Systems, ISRO
Biswas, Shubhajit ; Laboratory for Electro-Optics Systems, ISRO
Raha, Bijoy ; Laboratory for Electro-Optics Systems, ISRO
Pradhan, Swarupananda ; Bhabha Atomic Research Centre
T., Venkatappa Rao ; Department of Physics, NIT Warangal
S. B., Umesh ; Laboratory for Electro-Optics Systems, ISRO
S., Elumalai ; Laboratory for Electro-Optics Systems, ISRO
P., Kalpana Arvind; Laboratory for Electro-Optics Systems, ISRO
K. V., Sriram ; Laboratory for Electro-Optics Systems, ISRO
Upadhya, Prashanth C.; Laboratory for Electro-Optics Systems, ISRO
 
Uncontrolled Index Term Atomic clock; Coherent Population Trapping; Quality figure; Frequency stability; Wall collision; Propagation effect
 
Summary, etc. The performance of Coherent Population Trapping (CPT) based atomic clocks primarily depends on the characteristics of CPT resonance. We have performed experiments to study and optimize the characteristics of CPT resonance in 87Rb atoms by measuring its contrast and full-width-at-half maximum (FWHM) as function of laser excitation and temperature of atomic vapor cells with different dimensions. A four-level atomic model is used to simulate CPT resonance characteristics along the length of atomic vapor cell. The model incorporates scaling law to understand collision dynamics in cells with different radius for a range of laser excitation intensities and the results are compared with experimental data. The quality figure, calculated from the measured values of FWHM and contrast, decreases with increase in laser intensity and improves in cells with higher dimension (radius). The optimum temperature corresponding to maximum quality figure varies with laser excitation intensity as well as cell dimension. The underlying collision dynamics and density effects that are responsible for the observed resonance characteristics are discussed.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2022-08-02 11:47:58
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJPAP/article/view/61376
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 60, ##issue.no## 6 (2022): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/61376/465601238
http://op.niscair.res.in/index.php/IJPAP/article/download/61376/465601239
http://op.niscair.res.in/index.php/IJPAP/article/download/61376/465601240
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India © 2015. The Council of Scientific &amp; Industrial Research, New Delhi.