Abstract

The concept of absorption by a metal–dielectric–metal structure is reexamined. The absorber system is modeled as a transparent medium between two absorbing films. We study the conditions for the parameters that ensure null reflectance and transmittance for a fixed wavelength of the incident radiation, and we present explicit expressions for the absorptance in each film. The absorption optimum conditions in a range of wavelengths are also analyzed.

© 1994 Optical Society of America

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