Photon tunneling through absorbing dielectric barriers

Autor: Toralf Gruner, Dirk-Gunnar Welsch
Rok vydání: 1997
Předmět:
Zdroj: Optics Communications. 134:447-454
ISSN: 0030-4018
Popis: Using a recently developed formalism of quantization of radiation in the presence of absorbing dielectric bodies, the problem of photon tunneling through absorbing barriers is studied. The multilayer barriers are described in terms of multistep complex permittivities in the frequency domain which satisfy the Kramers--Kronig relations. From the resulting input--output relations it is shown that losses in the layers may considerably change the photon tunneling times observed in two-photon interference experiments. It is further shown that for sufficiently large numbers of layers interference fringes are observed that cannot be related to a single traversal time.
17 pages LaTeX, 9 figures (PS) included
Databáze: OpenAIRE