Cherenkov radiation near a dielectric medium at finite temperatures

Autor:	A. Ungkitchanukit, C.-H. Eab, E.B. Manoukian
Rok vydání:	1997
Předmět:	Permittivity Surface (mathematics) Physics Field (physics) business.industry Plane (geometry) Dielectric Condensed Matter Physics Charged particle Electronic Optical and Magnetic Materials Optics Photon emission Electrical and Electronic Engineering Atomic physics business Cherenkov radiation
Zdroj:	Physica B: Condensed Matter. 240:68-75
ISSN:	0921-4526
DOI:	10.1016/s0921-4526(97)00409-2
Popis:	A field theoretical derivation given for the average number of Cherenkov photon emission by a charged particle, in a dielectric medium of permitivity e1, moving parallel to the plane surface of a different dielectric medium of permitivity e2 > e1 at finite temperatures. Near threshold for the speed of the charged particle, it is shown that an enhancement of about 31% of this number is possible in the presence of the second medium, by choosing specific windows, obtained from a general formula, centered about points of the spectrum at any temperature and arbitrary values of the permitivities e1, e2 > e1. The conditions for this 31% enhancement are explicitly worked out for blue and red light.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2c4598ca2c724a09b5d8fa3150e2cd89 https://doi.org/10.1016/s0921-4526(97)00409-2 Zobrazit plný text záznamu Full Text from ScienceDirect