Primary gas thermometry by means of laser absorption spectroscopy: Determination of the Boltzmann constant (Articolo in rivista)

Type
Label
  • Primary gas thermometry by means of laser absorption spectroscopy: Determination of the Boltzmann constant (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.100.200801 (literal)
Alternative label
  • G. Casa, A. Castrillo, G. Galzerano, R. Wehr, A. Merlone, D. Di Serafino, P. Laporta, and L. Gianfrani (2008)
    Primary gas thermometry by means of laser absorption spectroscopy: Determination of the Boltzmann constant
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Casa, A. Castrillo, G. Galzerano, R. Wehr, A. Merlone, D. Di Serafino, P. Laporta, and L. Gianfrani (literal)
Pagina inizio
  • 200801 (literal)
Pagina fine
  • 1-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 100 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Scienze Ambientali, Seconda Universita` di Napoli; Istituto di Fotonica e Nanotecnologie - CNR Istituto Nazionale Ricerca Metrologica (literal)
Titolo
  • Primary gas thermometry by means of laser absorption spectroscopy: Determination of the Boltzmann constant (literal)
Abstract
  • We report on a new optical implementation of primary gas thermometry based on laser-absorption spectrometry in the near infrared. The method consists in retrieving the Doppler broadening from highly accurate observations of the line shape of the R?12? ?1 ? 2?02 ? ?3 transition in CO2 gas at thermodynamic equilibrium. Doppler width measurements as a function of gas temperature, ranging between the triple point of water and the gallium melting point, allowed for a spectroscopic determination of the Boltzmann constant with a relative accuracy of ?1.6x10^-?4. (literal)
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