Tunable filter based on one-dimensional photonic crystal including nanocomposite material

• Published in: The European physical journal. D, Atomic, molecular, and optical physics Vol. 76; no. 3
• Main Authors: Rashwan, Hatem H., Mostafa, Samia I., El-Khawas, Enas H., El-Naggar, Sahar A.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2022; Springer Nature B.V
• Subjects: Applications of Nonlinear Dynamics and Chaos Theory; Atomic; Incidence angle; Matrix methods; Molecular; Nanocomposites; Nanoparticles; Optical and Plasma Physics; Optical filters; Photonic band gaps; Photonic crystals; Physical Chemistry; Physics; Physics and Astronomy; Quantum Information Technology; Quantum Physics; Regular Article – Optical Phenomena and Photonics; Silver; Spectroscopy/Spectrometry; Spintronics; Thickness; Transfer matrices; Tunable filters; Visible spectrum
• ISSN: 1434-6060; 1434-6079
• DOI: 10.1140/epjd/s10053-022-00373-y

In this work, we investigate the transmittance characteristics of one-dimensional ternary nanocomposite photonic crystals (PCs) by using the transfer matrix method. Our analysis is performed for both the transverse electric and the transverse magnetic polarized waves. We consider nanocomposite material consisting of silver nanoparticles embedded in a dielectric material. We show that the structure can block most of the visible light. In addition, we introduce a defect in the structure by two different methods. The first method is called mirror-symmetry and the second one is the conventional method where a defect layer is inserted in the middle of the PCs structure. The numerical results show that the defect mode arising in the photonic band gap can be adjusted by the incidence angle as well as the thickness of defect layer and the volume fraction. Therefore, the proposed structure is a good candidate to work as a tunable filter and a selective optical filter in the visible spectrum. Graphical abstract