Vol.3, No 1, 2004 pp. 35 - 39
UDC 533.92

UNIFORM PLASMA OSCILLATIONS
IN ELLIPSOID OF CONDUCTIVE MATERIAL
Yuri Kornyushin
Maître Jean Brunschvig Research Unit, Chalet Shalva, Randogne, CH-3975

Abstract. The influence of the shape of a sample on the type of uniform dipole collective electrons oscillations is discussed. In samples of a bulk shape uniform bulk dipole oscillation (Langmuir oscillation) cannot exist. It exists in samples of a thin slab shape only. As uniform bulk dipole oscillations cannot penetrate ellipsoidal samples of conductive material, they exist in the surface layer of a sample only (Mie oscillations). Frequencies of Mie oscillations are calculated for a sample of the shape of an arbitrary ellipsoid.

UNIFORMNE PLAZMENE OSCILACIJE U ELIPSOIDU PROVODNOG MATERIJALA
Razmatra se uticaj oblika uzorka na tip uniformnih dipolnih kolektivnih elektronskih oscilacija. U uzorcima "bulk" oblika uniformne dipolne oscilacije ne mogu da postoje, vec samo u uzorcima oblka tanke ploče. Ove oscilacije ne mogu da penetriraju elipsoidalne uzorke provodnih materijala, tako da se javljaju samo u površinskom omotaču uzorka ("Mie" oscilacije). Frekvence "Mie" oscilacija su izračunate za uzorke oblika proizvoljnog elipsoida.