Absolute molecular density determinations by direct referencing of a quantum cascade laser to an optical frequency comb (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Absolute molecular density determinations by direct referencing of a quantum cascade laser to an optical frequency comb (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s00340-012-5013-x (literal)

Alternative label

• Castrillo, A. and Gambetta, A. and Gatti, D. and Galzerano, G. and Laporta, P. and Marangoni, M. and Gianfrani, L. (2013)
  Absolute molecular density determinations by direct referencing of a quantum cascade laser to an optical frequency comb
  in Applied physics. B, Lasers and optics (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Castrillo, A. and Gambetta, A. and Gatti, D. and Galzerano, G. and Laporta, P. and Marangoni, M. and Gianfrani, L. (literal)

Pagina inizio

• 155 (literal)

Pagina fine

• 162 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 110 (literal)

Rivista

• Applied physics. B, Lasers and optics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 2 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Castrillo, A (Reprint Author), Univ Naples 2, Dipartimento Sci Ambientali, Via Vivaldi 43, I-81100 Caserta, Italy. Castrillo, A.; Gianfrani, L., Univ Naples 2, Dipartimento Sci Ambientali, I-81100 Caserta, Italy. Gambetta, A.; Gatti, D.; Marangoni, M., Politecn Milan, Dipartimento Fis, I-23900 Lecce, Italy. Galzerano, G.; Laporta, P., Politecn Milan, Dipartimento Fis, IFN CNR, I-20133 Milan, Italy. (literal)

Titolo

• Absolute molecular density determinations by direct referencing of a quantum cascade laser to an optical frequency comb (literal)

Abstract

• We propose a new approach to chemical gas analysis in the gas phase by direct referencing of a quantum cascade laser (QCL) to a near-infrared optical frequency comb. The concept was demonstrated through measurements of CO2 molecular densities, reaching a precision of 0.2 %. Thanks to the robust phase lock of the QCL to the comb, absorption profiles could be recorded with high accuracy and repeatability by tuning the repetition rate of the comb. Such a scheme gave us the opportunity to test a variety of semiclassical line-shape models, accounting for both Dicke narrowing and speed-dependent effects. The success of the speed-dependent Nelkin-Ghatak model, with a hypergeometric dependence of the pressure broadening coefficient on the absorber speed, was demonstrated. Finally, the dependence of molecular density determinations on the choice of the line-shape model was investigated, thus demonstrating the inadequacy of the Voigt profile. (literal)

Prodotto di

• Istituto di fotonica e nanotecnologie (IFN) (Istituto)

Autore CNR

• GIANLUCA GALZERANO (Unità di personale interno)
• PAOLO LAPORTA (Persona)
• DAVIDE GATTI (Persona)

Insieme di parole chiave

• Keywords of "Absolute molecular density determinations by direct referencing of a quantum cascade laser to an optical frequency comb" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GIANLUCA GALZERANO (Unità di personale interno)
• PAOLO LAPORTA (Persona)
• DAVIDE GATTI (Persona)

Prodotto

• Istituto di fotonica e nanotecnologie (IFN) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied physics. B, Lasers and optics (Rivista)

Insieme di parole chiave di

• Keywords of "Absolute molecular density determinations by direct referencing of a quantum cascade laser to an optical frequency comb" (Insieme di parole chiave)