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Comptes Rendus Physique
Volume 7, n° 2
pages 278-283 (mars 2006)
Doi : 10.1016/j.crhy.2006.02.001
Received : 20 September 2005 ;  accepted : 19 January 2006
Exciton polariton generation by field of a beta-particle moving into an ultrathin diamond-like layer
Génération de polaritons dʼexcitons par le champ dʼune particule beta se déplaçant dans une couche ultra-fine de type diamant
 

Vladimir V. Rumyantsev
A.A. Galkin Donetsk Physico-Technical Institute of NASU, R. Luxembourg Street, 72, 83114 Donetsk, Ukraine 

Abstract

Beta-particles can be utilized as an independent tool of study of new semiconductors, in particular thin diamond films. They are still the secondary particles that are emitted as a result of nucleus reactions caused by irradiation of the crystal by other particles. In this Note, the effect associated with response of a quasi-two-dimensional diamond-like layer to the moving electron field is considered. The beta-particle field induces exciton modes to arise in the material. Coupled with the beta-particle electromagnetic modes they generate polaritons. Spectral density of the radiation intensity of the flashed polaritons has been estimated as a function of the layer thickness as well as of the scattering angle and the beta-particle velocity. To cite this article: V.V. Rumyantsev, C. R. Physique 7 (2006).

The full text of this article is available in PDF format.
Résumé

Les particules bêta peuvent être utilisées comme outil indépendant pour lʼétude de nouveaux semi-conducteurs, en particulier des films minces de diamant. Ils sont aussi les particules secondaires provenant de lʼirradiation du cristal par dʼautres particules. Dans le présent article, on considère lʼeffet associé à la réponse dʼune couche quasi-bidimensionnelle de type diamant au champ dʼun électron mobile. Le champ de la particule bêta induit des modes dʼexcitons. Le couplage de ces excitons avec les modes électromagnétiques de la particule bêta engendre des polaritons. La densité spectrale de lʼintensité des polaritons est estimée en fonction de lʼépaisseur de la couche, de lʼangle de diffusion et de la vitesse de la particule bêta. Pour citer cet article : V.V. Rumyantsev, C. R. Physique 7 (2006).

The full text of this article is available in PDF format.


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