The wave energy flux of high frequency diffracting beams in complex geometrical optics (Articolo in rivista)

Type

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

Label

• The wave energy flux of high frequency diffracting beams in complex geometrical optics (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

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

• 10.1063/1.4802935 (literal)

Alternative label

• Maj, O [ 1 ] ; Mariani, A [ 2,3 ] ; Poli, E [ 1 ] ; Farina, D [ 2 ] (2013)
  The wave energy flux of high frequency diffracting beams in complex geometrical optics
  in Physics of plasmas (Online)
  (literal)

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

• Maj, O [ 1 ] ; Mariani, A [ 2,3 ] ; Poli, E [ 1 ] ; Farina, D [ 2 ] (literal)

Pagina inizio

• 042122 (literal)

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

• http://pop.aip.org/resource/1/phpaen/v20/i4/p042122_s1?view=fulltext (literal)

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

• 20 (literal)

Rivista

• Physics of plasmas (Rivista)

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

• 4 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• [ 1 ] EURATOM, Max Planck Inst Plasma Phys, D-85748 Garching, Germany [ 2 ] EURATOM ENEA CNR Assoc, CNR, Ist Fis Plasma P Caldirola, I-20125 Milan, Italy [ 3 ] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy (literal)

Titolo

• The wave energy flux of high frequency diffracting beams in complex geometrical optics (literal)

Abstract

• We consider the construction of asymptotic solutions of Maxwell's equations for a diffracting wave beam in the high frequency limit and address the description of the wave energy flux transported by the beam. With this aim, the complex eikonal method is applied. That is a generalization of the standard geometrical optics method in which the phase function is assumed to be complex valued, with the non-negative imaginary part accounting for the finite width of the beam cross section. In this framework, we propose an argument which simplifies significantly the analysis of the transport equation for the wave field amplitude and allows us to derive the wave energy flux. The theoretical analysis is illustrated numerically for the case of electron cyclotron beams in tokamak plasmas by using the GRAY code [D. Farina, Fusion Sci. Technol. 52, 154 (2007)], which is based upon the complex eikonal theory. The results are compared to those of the paraxial beam tracing code TORBEAM [E. Poli et al., Comput. Phys. Commun. 136, 90 (2001)], which provides an independent calculation of the energy flow. [http://dx.doi.org/10.1063/1.4802935] (literal)

Prodotto di

• Fisica e Tecnologia del Plasma e della Fusione Termonucleare (ET.P05.001.001) (Modulo)
• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)

Autore CNR

• DANIELA FARINA (Unità di personale interno)
• ALBERTO MARIANI (Persona)

Incoming links:

Prodotto

• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)
• Fisica e Tecnologia del Plasma e della Fusione Termonucleare (ET.P05.001.001) (Modulo)

Autore CNR di

• DANIELA FARINA (Unità di personale interno)
• ALBERTO MARIANI (Persona)

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

• Physics of plasmas (Rivista)