INVESTIGADORES
MATTEO Claudia Leda
artículos
Título:
Active isotropic slabs: conditions for amplified reflection
Autor/es:
L. I. PÉREZ; C. L. MATTEO; J. ETCHEVERRY; M. C. DUPLAÁ
Revista:
JOURNAL of PHYSICS
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Londres; Año: 2012 vol. 14 p. 125711 - 125711
ISSN:
1520-8532
Resumen:
We analyse in detail the necessary conditions to obtain amplified reflection (AR) in isotropic interfaces when a plane wave propagates from a transparent medium towards an active one. First, we demonstrate analytically that AR is not possible if a single interface is involved. Then, we study the conditions for AR in a very simple configuration: normal incidence on an active slab immersed in transparent media. Finally, we develop an analysis in the complex plane in order to establish a geometrical method that not only describes the behaviour of active slabs but also helps to simplify the calculus.
