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Applied Physics B

, 125:112 | Cite as

Pressure effect on hyperfine CPT resonance of ground-state Li atoms in glass hot-vapor cell

  • Kiyoshi IshikawaEmail author
Article
  • 29 Downloads

Abstract

We report the hyperfine splitting frequency of ground-state lithium atoms. The frequency shift is induced by the collisions to helium and xenon buffer gases. Coherent population-trapping resonance between the hyperfine levels enables the frequency measurements in the range of pressure from 2 to \(54\,\hbox {kPa}\) and temperature from 260 to \(400\,^{\circ }\hbox {C}\) in borosilicate-glass cells. The buffer-gas density is self-consistently calibrated from the hyperfine splitting in the sealed cells. The resonance frequency and the line width provide an insight into collision-induced spin dynamics, where hyperfine-shift, spin-rotation, and spin-exchange interactions play an important role in atomic lithium vapor and buffer gas.

Notes

Acknowledgements

This work was supported in part by JSPS KAKENHI Grant Number 16H04030. The author acknowledges stability evaluation of locking system by undergraduate students.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Graduate School of Material ScienceUniversity of HyogoHyogoJapan

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