Strong light absorption and absorption absence in photonic crystals with helical structure in an external static magnetic field

• DOI: 10.1364/josab.492188
• Publication Date: 2023-06-16T20:00:19Z
• Authors: A. H. Gevorgyan; N. A. Vanyushkin; I. M. Efimov; A. O. Kamenev; S. S. Golik; H. Gharagulyan; T. M. Sarukhanyan; Malek G. Daher; K. B. Oganesyan
• Keywords: 02 engineering and technology; 0210 nano-technology

In this paper, we investigate the light absorption in helically structured photonic crystals (HSPCs) in an external static magnetic field in the case when the parameter of magneto-optical activity is a function of the light wavelength. We investigate and compare the spectra of absorption, the spectra of imaginary parts of wave vectors of forward propagating eigenwaves, the spectra of the azimuth φ and ellipticity e of the total wave excited in the HSPC layer at its input surface for diffracting eigenwaves for both the absence and presence of an external magnetic field and, finally, in the absence and presence of absorption. All features of absorption are considered in detail, and their mechanisms are revealed.