Bulletin of the Lebedev Physics Institute

, Volume 45, Issue 10, pp 295–298 | Cite as

Thermometry in a Gas Discharge Cell of an Optical Wavelength Calibrator

  • A. K. Chernyshov
  • P. A. Mikheyev


Temperature and pressure in a sealed Ar cell of an optical wavelength calibrator are measured using diode laser spectroscopy. The values of the thermodynamic parameters allowed determination of the fluctuations of the shift of the argon line at 811.5 nm. The expected fluctuation amplitude appears lower than ±15 MHz. The result obtained indicates the applicability of the studied calibrator as an optical reference and the correctness of previous measurements of pressure shift coefficients of the 811.5 nm argon line.


argon low pressure RF discharge optical calibrator spectral line pressure shift thermometry diode-laser spectroscopy 


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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Lebedev Physical Institute, Samara BranchRussian Academy of SciencesSamaraRussia
  2. 2.Samara National Research UniversitySamaraRussia

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