Journal of Physical Studies 27(2), Article 2401 [6 pages] (2023)
DOI: https://doi.org/10.30970/jps.27.2401

HIGH SELECTIVE ABSORPTION BY A PLANAR MULTILAYER STRUCTURE WITH TWO LOW ABSORBING MATERIALS IN THE CORE

O. P. Kushnir , S. V. Myagkota 

Lviv National University of Nature Management, Physics Department,
1, V. Velykogo St., Dubljany, Lviv region, 80381, Ukraine

Received 28 November 2022; in final form 17 February 2023; accepted 09 March 2023; published online 08 June 2023

The necessary conditions are established for the thicknesses of two layers of the planar absorbing structure at which zero reflectance can be achieved. Using these conditions, a numerical procedure was developed for finding the thicknesses of three layers of the structure, which makes it possible to achieve close to zero values of the reflectance and transmittance for the chosen wavelength. This made it possible to propose a method for designing narrow-band absorbers based on such structures.

Key words: absorber, zero reflectance, selective absorption, multilayer structure.

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