title: Polarization insensitive infrared absorbing behaviour of one-dimensional multilayer stack: a fractal approach.
abstract: The control and tailoring of infrared absorbance/emittance is a crucial task for all those applications involving thermal radiation management and detection. We theoretically investigated the peculiar absorbing/emitting behaviour of pre-fractal Cantor multilayers, in order to design a polarization-insensitive multilayer stack absorbing over a wide angular lobe in the mid wavelength infrared range (8-10 μm). Using transfer matrix method, we explored the spectral properties arising from both the material and the geometrical dispersion. We considered several combinations of the constituent materials: SiO2 was combined with TiO2 and Si, respectively.
authors.forename: M C
authors.initials: MC
authors.lastname: Larciprete
authors.forename: M
authors.initials: M
authors.lastname: Centini
authors.forename: R
authors.initials: R
authors.lastname: Li Voti
authors.forename: M
authors.initials: M
authors.lastname: Bertolotti
authors.forename: C
authors.initials: C
authors.lastname: Sibilia
mesh_terms: D065638:Absorption, Radiation; D000465:Algorithms; D003198:Computer Simulation; D017709:Fractals; D007259:Infrared Rays; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000528:radiation effects; D008956:Models, Chemical; D012542:Scattering, Radiation