Photonic quasi-periodic multilayered structure for the near-infrared region

This paper presents the results of a study of silicon multilayered structures in the near-infrared region (wavelength range 0.8-1.7 μm). The quasi-periodic layered systems are created when two different layers with alternative high (H) and low (L) refractive index are arranged according to the following relations: equation, {H
_λ/4
¹
L
_λ/4
¹
H
_x
¹
L
_x
¹
}, ..., {H
_λ/4
^N
L
_λ/4
^N
H
_x
^N
L
_x
^N
}, where x= mλ/4, (m-1,2 ...)- is the effective optical thickness of the arbitrary layer. The transfer matrix formalism is used to perform simulations of light propagation into investigated structures. Varying the thickness of second building block layers we have obtained the results that describe optical response of quasi-periodic structures dependently on selection of their parameters.