Photoelastic analysis of the clusterized 1D photonic system as a function of defect layers

• Published in: Physica. B, Condensed matter Condensed matter, 2022-08, Vol.639, p.414012, Article 414012
• Main Authors: Lakshmi Thara, R., Aruna Priya, P., Nayak, Chittaranjan
• Format: Article
• Language: English
• Subjects: Addition polymerization; Clustered random structure; Communication; Crystal defects; Crystals; Defect; Elasto-optic effect; Mathematical models; Matrix methods; One dimensional photonic crystal; Optical communication; Optical properties; Photoelastic analysis; Photonic crystals; Photonics; Polystyrene resins; Pressure effects; Silica; Silicon dioxide; Simulation; Structural property relationship; Transfer matrices
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2022.414012

This paper demonstrates the elasto-optic behavior of the one dimensional (1D) 4-Cmax clustered disordered photonic crystals. To study the effects of pressure, 2, 5, 10 and 15% of defective layers were introduced over the binary random structures. The 4-Cmax clustered disordered structure is composed of polymer materials (PMMA and PS). The additional Silicon dioxide (SiO2) layers are inserted into the random system, which acts as the defect layers. The optical properties of the clustered structure under pressure are numerically calculated using the transfer matrix method. The designed wavelength, λ is maintained at 1550 nm for optical communication purposes. When the pressure increases from 0 to 6 GPa, depending on the percentages of defective layers, there exist changes in the width of the transmission peaks. These transmission peaks appeared within the chosen spectrum (1547–1553 nm). Numerical simulations indicate the occurrences of transmission peaks with a quality factor of 775000 at 1550 nm. Moreover, the aggregated structures show the monotonic decrease of the total transmission as the function of defects and pressure. The proposed system provides a linearity scale up to 99% (i.e.R2 = 0.99). The photoelastic properties of the 1D clustered structures are very interesting for the modelization of the filters and sensors. •The photo-elastic effects of the disordered structures studied here are characterized by the percentage of defects. To improve the quality of sensing, 4-Cmax cluster distribution has been followed to configure the disordered structure.•Transmission spectra for the proposed structures ((PS/PMMA)+2% of SiO2, (PS/PMMA)+5% of SiO2, (PS/PMMA)+10% of SiO2 and (PS/PMMA)+15% of SiO2) are theoretically calculated using the transfer matrix method.•The applied defects has a distinct effect on the width of the transmission peaks.•Transmittance gets narrower with the slight increases in the percentage of defect layers and pressure applied.•5% of defects incorporated in the proposed model shows 99% of linear responses which could be useful in designing pressure measurable devices.