Autor:	Efimov, I. M., Vanyushkin, N. A., Gevorgyan, A. H.
Rok vydání:	2022
Předmět:	Physics - Optics
Druh dokumentu:	Working Paper
Popis:	We propose an improved structure of an optical biosensor based on a photonic crystal (PC) with a defect layer (DL), which can detect the concentration of SARS-CoV-2 in water by defect mode (DM) shift. We investigated 4 types of defective PCs with different arrangements of layers inside the perfect PCs and their impact on the performance of the sensor. The sensitivity and amplitude of DM were examined as a function of DL thickness. Also, the peculiarities of edge modes in the presence of DL were investigated. Finally, we obtained a characteristic equation to determine the wavelengths of DMs for an arbitrary 1D PC with an isotropic defect inside. Comment: 14 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2208.04753 Zobrazit plný text záznamu View this record from Arxiv