Doppler Broadening Thermometry by means of dual-laser absorption spectrometry at 1.39 μm

E. Fasci; H. Dinesan; P. Amodio; M. D. De Vizia; A. Merlone; G. Galzerano; P. Laporta; A. Castrillo; L. Moretti; L. Gianfrani

2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
(Optica Publishing Group, 2015),
paper ED_2_6

Doppler Broadening Thermometry by means of dual-laser absorption spectrometry at 1.39 μm

E. Fasci, H. Dinesan, P. Amodio, M. D. De Vizia, A. Merlone, G. Galzerano, P. Laporta, A. Castrillo, L. Moretti, and L. Gianfrani

European Quantum Electronics Conference 2015

Munich Germany
21–25 June 2015
ISBN: 978-1-4673-7475-0

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Combs and Precision Measurement (ED_2)

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E. Fasci, H. Dinesan, P. Amodio, M. D. De Vizia, A. Merlone, G. Galzerano, P. Laporta, A. Castrillo, L. Moretti, and L. Gianfrani, "Doppler Broadening Thermometry by means of dual-laser absorption spectrometry at 1.39 μm," in 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, (Optica Publishing Group, 2015), paper ED_2_6.

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Abstract

We report on the recent advances towards the development of low-uncertainty Doppler broadening thermometry, based upon precision molecular spectroscopy in the near-infrared region, for the aims of the spectroscopic determination of the Boltzmann constant. In the 3^rd-generation experiment, our goal is to further reduce the global uncertainty as compared to previous determinations [1, 2], thus approaching the target accuracy of one part in 10⁶.

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