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Title: Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy

Abstract

We report the realization and characterization using coherent population trapping (CPT) spectroscopy of an octadecyltrichlorosilane (OTS)-coated centimeter-scale Cs vapor cell. The dual-structure of the resonance lineshape, with presence of a narrow structure line at the top of a Doppler-broadened structure, is clearly observed. The linewidth of the narrow resonance is compared to the linewidth of an evacuated Cs cell and of a buffer gas Cs cell of similar size. The Cs-OTS adsorption energy is measured to be (0.42 ± 0.03) eV, leading to a clock frequency shift rate of 2.7 × 10{sup −9}/K in fractional unit. A hyperfine population lifetime, T{sub 1}, and a microwave coherence lifetime, T{sub 2}, of 1.6 and 0.5 ms are reported, corresponding to about 37 and 12 useful bounces, respectively. Atomic-motion induced Ramsey narrowing of dark resonances is observed in Cs-OTS cells by reducing the optical beam diameter. Ramsey CPT fringes are detected using a pulsed CPT interrogation scheme. Potential applications of the Cs-OTS cell to the development of a vapor cell atomic clock are discussed.

Authors:
; ; ; ; ;  [1]; ;  [2]
  1. FEMTO-ST, CNRS, UFC, 26 Chemin de l'Epitaphe, 25030 Besançon Cedex (France)
  2. LNE-SYRTE, Observatoire de Paris, CNRS, UPMC, 61 avenue de l'Observatoire, 75014 Paris (France)
Publication Date:
OSTI Identifier:
22410186
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION SPECTROSCOPY; ADSORPTION; CESIUM; COMPARATIVE EVALUATIONS; DOPPLER BROADENING; EV RANGE; LIFETIME; LINE WIDTHS; MICROWAVE RADIATION; RESONANCE; SPECTROSCOPY; TRAPPING; VAPORS

Citation Formats

Hafiz, Moustafa Abdel, Maurice, Vincent, Chutani, Ravinder, Passilly, Nicolas, Gorecki, Christophe, Boudot, Rodolphe, Guérandel, Stéphane, and Clercq, Emeric de. Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy. United States: N. p., 2015. Web. doi:10.1063/1.4919841.
Hafiz, Moustafa Abdel, Maurice, Vincent, Chutani, Ravinder, Passilly, Nicolas, Gorecki, Christophe, Boudot, Rodolphe, Guérandel, Stéphane, & Clercq, Emeric de. Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy. United States. doi:10.1063/1.4919841.
Hafiz, Moustafa Abdel, Maurice, Vincent, Chutani, Ravinder, Passilly, Nicolas, Gorecki, Christophe, Boudot, Rodolphe, Guérandel, Stéphane, and Clercq, Emeric de. Thu . "Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy". United States. doi:10.1063/1.4919841.
@article{osti_22410186,
title = {Characterization of Cs vapor cell coated with octadecyltrichlorosilane using coherent population trapping spectroscopy},
author = {Hafiz, Moustafa Abdel and Maurice, Vincent and Chutani, Ravinder and Passilly, Nicolas and Gorecki, Christophe and Boudot, Rodolphe and Guérandel, Stéphane and Clercq, Emeric de},
abstractNote = {We report the realization and characterization using coherent population trapping (CPT) spectroscopy of an octadecyltrichlorosilane (OTS)-coated centimeter-scale Cs vapor cell. The dual-structure of the resonance lineshape, with presence of a narrow structure line at the top of a Doppler-broadened structure, is clearly observed. The linewidth of the narrow resonance is compared to the linewidth of an evacuated Cs cell and of a buffer gas Cs cell of similar size. The Cs-OTS adsorption energy is measured to be (0.42 ± 0.03) eV, leading to a clock frequency shift rate of 2.7 × 10{sup −9}/K in fractional unit. A hyperfine population lifetime, T{sub 1}, and a microwave coherence lifetime, T{sub 2}, of 1.6 and 0.5 ms are reported, corresponding to about 37 and 12 useful bounces, respectively. Atomic-motion induced Ramsey narrowing of dark resonances is observed in Cs-OTS cells by reducing the optical beam diameter. Ramsey CPT fringes are detected using a pulsed CPT interrogation scheme. Potential applications of the Cs-OTS cell to the development of a vapor cell atomic clock are discussed.},
doi = {10.1063/1.4919841},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 18,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}